{"id":1268,"date":"2020-07-11T13:15:41","date_gmt":"2020-07-11T05:15:41","guid":{"rendered":"https:\/\/www.study-together.com\/edu\/?page_id=1268"},"modified":"2020-11-02T23:50:53","modified_gmt":"2020-11-02T15:50:53","slug":"rate-and-ratio","status":"publish","type":"page","link":"https:\/\/www.study-together.com\/edu\/secondary\/form2_maths\/rate-and-ratio\/","title":{"rendered":"6. \u7387\u53ca\u6bd4 (Rate and Ratio)"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"1268\" class=\"elementor elementor-1268\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-5095b74 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5095b74\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-66 elementor-top-column elementor-element elementor-element-14d93bc\" data-id=\"14d93bc\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ab2030d elementor-widget elementor-widget-text-editor\" data-id=\"ab2030d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>6.1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u7387\u53ca\u6bd4\u7684\u5b9a\u7fa9<\/h2><ul><li>\u7387\u662f\u300c\u5169\u500b\u4e0d\u540c\u91cf(\u55ae\u4f4d)\u76f8\u9664\uff0c\u6709\u55ae\u4f4d\u300d\u3002<ul><li>\u4f8b\u5982\u5c0f\u660e\u6bcf\u5929\u5de5\u4f5c10\u5c0f\u6642\uff0c\u4e00\u5929\u7684\u4eba\u5de5\u662f$500\u3002\u800c\u6642\u85aa\u5c31\u4fc2\u4e00\u500b\u7387\u3002<br \/>\\(\\begin{align}<br \/>\u5c0f\u660e\u7684\u6642\u85aa &amp; = \\dfrac{\u6bcf\u65e5\u7684\u6536\u5165}{\u5de5\u4f5c\u6642\u6578} \\\\<br \/>&amp; = \\dfrac{500}{10} \\\\<br \/>&amp; = 50 \u5143\/\u5c0f\u6642<br \/>\\end{align}\\)<\/li><\/ul><\/li><li>\u6bd4\u662f\u300c\u5169\u500b\u76f8\u540c\u91cf(\u55ae\u4f4d)\u76f8\u9664\uff0c\u6ca1\u6709\u55ae\u4f4d\u300d\u3002<ul><li>\u4f8b\u5982\u5c0f\u5f37\u91cd80kg\u3001\u5c0f\u654f\u91cd50kg\u3002\u5c0f\u5f37\u548c\u5c0f\u654f\u7684\u9ad4\u91cd\u6bd4\u662f\u6c92\u6709\u55ae\u4f4d\u7684\u3002<br \/>\\(\\begin{align}<br \/>\\dfrac{\u5c0f\u5f37\u7684\u9ad4\u91cd}{\u5c0f\u654f\u7684\u9ad4\u91cd} &amp; = \\dfrac{80}{50} \\\\<br \/>&amp; = \\dfrac{8}{5}<br \/>\\end{align}\\)<\/li><li>\u4e0a\u9762\u4fc2\u8a08\u7b97\u6bd4\u5605\u65b9\u6cd5\u3002\u800c\u7fd2\u6163\u4e0a\uff0c\u55ba\u5beb\u7b54\u6848\u6642\uff0c\u6211\u5730\u6703\u5beb<ul><li>\u5c0f\u5f37\u9ad4\u91cd\uff1a\u5c0f\u654f\u9ad4\u91cd = 8 : 3<\/li><\/ul><\/li><\/ul><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b2ac01d elementor-widget elementor-widget-text-editor\" data-id=\"b2ac01d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>6.2\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u91cd\u8981\u516c\u5f0f<\/h2><p>\\(\u901f\u7387 (Speed) = \\dfrac{\u8ddd\u96e2 (Distance)}{\u6642\u9593 (Time)}\\)<\/p><ul><li style=\"list-style-type: none;\"><ul><li>\u8a08\u7b97\u901f\u5ea6\u554f\u984c\u6642\uff0c\u9700\u7559\u610f\u5404\u6578\u503c\u7684\u55ae\u4f4d\u662f\u5426\u4e00\u81f4\u3002<ul><li>\u4f8b\u5982\u4e00\u67b6\u8eca\u7684\ud861\udd66\u7387\u4fc260km\/hour\u3002<ul><li>\u8eca\u884c\u99db2\u5c0f\u6642\u6240\u79fb\u52d5\u7684\u8ddd\u96e2\u4fc2120km\u3002<\/li><li>\u8eca\u884c\u99db10\u5206\u9418\u6240\u79fb\u52d5\u7684\u8ddd\u96e2\u4fc210km\u800c\u5514\u4fc2600km(\u56e0\u70ba10\u5206\u937e = 1\/6 \u5c0f\u6642\uff09<\/li><\/ul><\/li><\/ul><\/li><\/ul><\/li><\/ul><p>\\(\u5982 \\quad\u00a0 \\dfrac{a}{b} = \\dfrac{p}{q}\uff0c\\\\<br \/>\u5247\\quad a : b = p : q \\)<\/p><ul><li style=\"list-style-type: none;\"><ul><li>\u5176\u5be6\u4f9d\u500b\u5514\u4fc2\u516c\u5f0f\uff0c\u53ea\u4fc2\u4e00\u500b\u6578\u5b78\u5bb6\u7528\u569f\u66f8\u5beb&#8221;\u6bd4&#8221;\u5605\u7fd2\u6163\/\u65b9\u5f0f\u3002<\/li><li>\u8a08\u7b97\u6bd4\u4f8b\u6642\uff0c\u55ae\u4f4d\u9700\u76f8\u540c\u3002<br \/>\\(\\begin{align}<br \/>\u5982\u00a0 \\quad &amp; a = 1m\uff0cb = 20cm\uff1b \\\\<br \/>\u5247 \\quad &amp; \\dfrac{a}{b} \\\\<br \/>&amp; = \\dfrac{1m}{20cm} \\\\<br \/>&amp; = \\dfrac{100cm}{20cm} = \\dfrac{5}{1} \\\\<br \/>\\therefore \\quad &amp; a : b \\\\<br \/>&amp; = 5 : 1 <br \/>\\end{align}\\)<\/li><\/ul><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b209d0d elementor-widget elementor-widget-text-editor\" data-id=\"b209d0d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h2>6.3\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u6bd4\u4e4b\u61c9\u7528<\/h2><h3>6.3.1\u00a0 \u6bd4\u4f8b\u5c3a (Map Scale)<\/h3><p>\u5730\u5716\u4e0a\u7684\u6bd4\u4f8b\u5c3a\u4e00\u822c\u662f\u4ee5\u300c1:n\u300d\u7684\u5f62\u5f0f\u4f86\u8868\u793a\u3002\u5373<\/p><p>\\(\\dfrac{\u5730\u5716\u4e2d\u7684\u9577\u5ea6}{\u5be6\u969b\u7684\u9577\u5ea6} = \\dfrac{1}{n}\\)<\/p><p>\u4f8b1\uff1a\u00a0\u00a0\u00a0 \u5728\u4e00\u5e45\u6bd4\u4f8b\u5c3a\u662f 1\uff1a50 000 \u7684\u5730\u5716\u4e0a\uff0c\u91cf\u5ea6\u5f97\u4e00\u6bb5\u9053\u8def\u9577 4.5 cm\u3002\u8a72\u6bb5\u9053\u8def\u7684\u5be6\u969b\u9577\u5ea6\uff08\u4ee5 km \u70ba\u55ae\u4f4d\uff09\u662f\u591a\u5c11\uff1f<br \/>\u7b54\uff1a\u00a0\u00a0\u00a0 \u8a2d\u5be6\u969b\u9577\u5ea6 = <em>x<\/em><\/p><p style=\"padding-left: 80px;\">\\( \\begin{align} <br \/>\\dfrac{4.5}{x} &amp; = \\dfrac{1}{50000} \\\\<br \/>x &amp; = 225000 cm \\quad \\quad \\quad (\u7559\u610f:\u7b54\u6848\u7684\u55ae\u4f4d\u662f\u4e00\u81f4\u7684) \\\\<br \/>x &amp; = \\dfrac{225000}{100&#215;1000} km \\quad \\quad (\u4e4b\u5f8c\u518d\u8f49\u63db\u55ae\u4f4d) \\\\<br \/>x &amp; = 2.25km<br \/>\\end{align}\\)<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-62acdbb elementor-widget elementor-widget-text-editor\" data-id=\"62acdbb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3>6.3.2\u00a0 \u4e09\u9805\u7684\u6bd4<\/h3><p>\u4f8b2\uff1a\u5df2\u77e5a : b = 5 : 6\uff0cb : c = 1 : 3\uff0c\u6c42a : b : c\u3002<em><br \/><\/em>\u7b54: \u5728\u628a\u5169\u500b\u6bd4\u7d50\u5408\u57cb\u4e00\u9f4a\u4e4b\u524d\uff0c\u9996\u5148\u8981\u900f\u904e\u628a\u5169\u500b\u6bd4\u64f4\u5927\uff0c\u78ba\u4fdd\u540c\u6642\u51fa\u73fe\u5728\u5169\u500b\u6bd4\u4e2d\u7684\u8b8a\u6578\u7684\u6578\u503c\u8b8a\u6210\u4e00\u6a23\u3002\u70ba\u65b9\u4fbf\u7406\u89e3\uff0c\u5927\u5bb6\u7559\u610f\u4e0b\u9762\u7d05\u8272\u7684\u5b57\u3002<\/p><p style=\"padding-left: 40px;\">\\(\\begin{align}<br \/>a : {\\color{Red}b}\u3000 &amp; = 5 : {\\color{Red}6} \\\\<br \/>\u3000{\\color{Red}b} : c &amp; =\\quad 1 : 3 \\\\<br \/>&amp; =\\quad {\\color{Red}6}: 18\\\\<br \/>\\therefore\u00a0 a : {\\color{Red}b} : c\u00a0 &amp; = 5 : {\\color{Red}6} : 18<br \/>\\end{align}\\)<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dabad44 elementor-widget elementor-widget-text-editor\" data-id=\"dabad44\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3>6.3.3\u00a0 \u5206\u9322\u554f\u984c<\/h3><p>\u4f8b3\uff1a \u82e5<em>A<\/em>\u548c<em>B<\/em>\u4ee53\uff1a5\u7684\u6bd4\u4f86\u5206$1000\uff0c\u6c42\u6bcf\u4eba\u6240\u5f97\u7684\u6b3e\u9805\u3002<\/p><p><strong><u>\u65b9\u6cd5\u4e00\uff1a\u50b3\u7d71\u65b9\u6cd5<br \/><\/u><\/strong>\u8003\u616e<em>A<\/em>\u53ca<em>B<\/em>\u6240\u5f97\u4f54\u5168\u90e8\u7684\u5e7e\u5206\u4e4b\u5e7e\u3002<\/p><p>\\(\\begin{align}<br \/>A\u6240\u5f97\u7684\u6b3e\u9805 &amp; = \\dfrac{3}{3 + 5} \\times 1000 \\\\<br \/>&amp; = 375\u5143<br \/>B\u6240\u5f97\u7684\u6b3e\u9805 &amp; = \\dfrac{5}{3 + 5} \\times 1000 \\\\<br \/>&amp; = 625\u5143<br \/>\\end{align}\\)<\/p><p><strong><u>\u65b9\u6cd5\u4e8c\uff1a<em>k<\/em><\/u><\/strong><strong><u>\u65b9\u6cd5<br \/><\/u><\/strong>\u56e0a\uff1ab = 3\uff1a5\uff0c\u6240\u4ee5\u53ef\u8a2d<em>A<\/em>\u6240\u5f97\u7684\u6b3e\u9805\u70ba3k\uff0cB\u6240\u5f97\u7684\u6b3e\u9805\u70ba5k\u3002<br \/>\\(\\begin{align}<br \/>\\therefore \\quad 3k + 5k &amp; = 1000 \\\\<br \/>8k &amp; = 1000 \\\\<br \/>k &amp; = 125\\\\<br \/><br \/>\\therefore \\quad A\u6240\u5f97\u7684\u6b3e\u9805 &amp; = 3 \u00d7 125 = 375\u5143 \\\\<br \/>B\u6240\u5f97\u7684\u6b3e\u9805 &amp; = 5 \u00d7 125 = 625\u5143<br \/>\\end{align}\\)<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-0486853 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"0486853\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-396400a\" data-id=\"396400a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c6c7cee elementor-widget elementor-widget-text-editor\" data-id=\"c6c7cee\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.study-together.com\/edu\/secondary\/form2_maths\/simultaneous-linear-equations\/\"><i class=\"far fa-arrow-alt-circle-left\" aria-hidden=\"true\"><\/i> \u806f\u7acb\u4e8c\u5143\u4e00\u6b21\u65b9\u7a0b<\/a>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-b9ac470\" data-id=\"b9ac470\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-9934218\" data-id=\"9934218\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-65cec34 elementor-widget elementor-widget-text-editor\" data-id=\"65cec34\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p style=\"text-align: right;\"><a href=\"https:\/\/www.study-together.com\/edu\/secondary\/form2_maths\/use-of-percentage\/\">\u767e\u4efd\u6cd5 <i class=\"far fa-arrow-alt-circle-right\" aria-hidden=\"true\"><\/i><\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-340e350\" data-id=\"340e350\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6fbe4bd elementor-widget elementor-widget-sidebar\" data-id=\"6fbe4bd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"sidebar.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"sidebar-box widget-oceanwp-custom-menu custom-menu-widget clr\"><style type=\"text\/css\">.ocean_custom_menu-3 > ul > li > a, .custom-menu-widget .ocean_custom_menu-3 .dropdown-menu .sub-menu li a.menu-link{font-size:16px;line-height:17px;}.custom-menu-widget .ocean_custom_menu-3.oceanwp-custom-menu > ul.click-menu .open-this{font-size:16px;}<\/style><h4 class=\"widget-title\">\u4e2d\u4e8c\u6578\u5b78\u3010\u76ee\u9304\u3011<\/h4><div class=\"oceanwp-custom-menu clr ocean_custom_menu-3 left dropdown-hover\"><ul id=\"menu-form2mathstopics\" class=\"dropdown-menu sf-menu\"><li  id=\"menu-item-1248\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-1248\"><a href=\"https:\/\/www.study-together.com\/edu\/secondary\/form2_maths\/approximation-errors\/\" class=\"menu-link\">1. \u8fd1\u4f3c\u8207\u8aa4\u5dee (Approximation &#038; Errors)<\/a><\/li>\n<li  id=\"menu-item-1261\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-1261\"><a href=\"https:\/\/www.study-together.com\/edu\/secondary\/form2_maths\/identities\/\" class=\"menu-link\">2. \u6046\u7b49\u5f0f (Identities)<\/a><\/li>\n<li  id=\"menu-item-1266\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-1266\"><a href=\"https:\/\/www.study-together.com\/edu\/secondary\/form2_maths\/factorization\/\" class=\"menu-link\">3. \u56e0\u5f0f\u5206\u89e3 (Factorization)<\/a><\/li>\n<li  id=\"menu-item-1265\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-1265\"><a href=\"https:\/\/www.study-together.com\/edu\/secondary\/form2_maths\/formulae\/\" class=\"menu-link\">4. \u516c\u5f0f (Formulae)<\/a><\/li>\n<li  id=\"menu-item-1278\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-1278\"><a href=\"https:\/\/www.study-together.com\/edu\/secondary\/form2_maths\/simultaneous-linear-equations\/\" class=\"menu-link\">5. \u806f\u7acb\u4e8c\u5143\u4e00\u6b21\u65b9\u7a0b (Simultaneous Linear Equations)<\/a><\/li>\n<li  id=\"menu-item-1279\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-1279\"><a href=\"https:\/\/www.study-together.com\/edu\/secondary\/form2_maths\/rate-and-ratio\/\" class=\"menu-link\">6. \u7387\u53ca\u6bd4 (Rate and Ratio)<\/a><\/li>\n<li  id=\"menu-item-1280\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-1280\"><a href=\"https:\/\/www.study-together.com\/edu\/secondary\/form2_maths\/use-of-percentage\/\" class=\"menu-link\">7. \u767e\u4efd\u6cd5 (Use of Percentage)<\/a><\/li>\n<li  id=\"menu-item-1302\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-1302\"><a href=\"https:\/\/www.study-together.com\/edu\/secondary\/form2_maths\/geometry\/\" class=\"menu-link\">8. \u5e7e\u4f55\u5b9a\u7406 (Geometry)<\/a><\/li>\n<li  id=\"menu-item-1303\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-1303\"><a href=\"https:\/\/www.study-together.com\/edu\/secondary\/form2_maths\/pythagoras-theorem\/\" class=\"menu-link\">9. \u7562\u6c0f\u5b9a\u7406 (Pythagoras\u2019 Theorem)<\/a><\/li>\n<li  id=\"menu-item-1304\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-1304\"><a href=\"https:\/\/www.study-together.com\/edu\/secondary\/form2_maths\/trigonometric-ratios\/\" class=\"menu-link\">10. \u4e09\u89d2\u6bd4 (Trigonometric Ratios)<\/a><\/li>\n<li  id=\"menu-item-1305\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-1305\"><a href=\"https:\/\/www.study-together.com\/edu\/secondary\/form2_maths\/areas-and-volumes\/\" class=\"menu-link\">11. \u9762\u7a4d\u548c\u9ad4\u7a4d (Areas and Volumes)<\/a><\/li>\n<li  id=\"menu-item-1306\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-1306\"><a href=\"https:\/\/www.study-together.com\/edu\/secondary\/form2_maths\/statistics\/\" class=\"menu-link\">12. \u7d71\u8a08 (Statistics)<\/a><\/li>\n<li  id=\"menu-item-16137\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-16137\"><a href=\"https:\/\/www.study-together.com\/edu\/secondary\/exam_papers\/\" class=\"menu-link\">*** \u521d\u4e2d\u8a66\u5377 \/ \u8a66\u984c\u5eab ***<\/a><\/li>\n<\/ul><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>6.1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u7387\u53ca\u6bd4\u7684\u5b9a\u7fa9 \u7387\u662f\u300c\u5169\u500b\u4e0d\u540c\u91cf(\u55ae\u4f4d)\u76f8\u9664\uff0c\u6709\u55ae\u4f4d\u300d\u3002 \u4f8b\u5982\u5c0f\u660e\u6bcf\u5929\u5de5\u4f5c10\u5c0f\u6642\uff0c\u4e00\u5929\u7684\u4eba [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":1238,"menu_order":5,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"ocean_post_layout":"","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"0","ocean_second_sidebar":"0","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"default","ocean_display_header":"default","ocean_header_style":"","ocean_center_header_left_menu":"0","ocean_custom_header_template":"0","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"0","ocean_menu_typo_font_family":"0","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"default","ocean_disable_heading":"default","ocean_post_title":"","ocean_post_subheading":"","ocean_post_title_style":"","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"default","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"default","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"0","footnotes":""},"class_list":["post-1268","page","type-page","status-publish","hentry","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u7387\u53ca\u6bd4 (Rate and Ratio) &#187; \u4e2d\u4e8c\u6578\u5b78 &#187; \u9ede\u5148\u5b78\u5f97\u597d? &#187; \u9f4a\u9f4a\u6eab<\/title>\n<meta name=\"description\" content=\"\u7387\u662f\u300c\u5169\u500b\u4e0d\u540c\u91cf(\u55ae\u4f4d)\u76f8\u9664\uff0c\u6709\u55ae\u4f4d\u300d\u3002 \u4f8b\u5982\u5c0f\u660e\u6bcf\u5929\u5de5\u4f5c10\u5c0f\u6642\uff0c\u4e00\u5929\u7684\u4eba\u5de5\u662f$500\u3002\u800c\u6642\u85aa($50\/\u5c0f\u6642)\u5c31\u4fc2\u4e00\u500b\u7387\u3002\u6bd4\u662f\u300c\u5169\u500b\u76f8\u540c\u91cf(\u55ae\u4f4d)\u76f8\u9664\uff0c\u6ca1\u6709\u55ae\u4f4d\u300d\u3002 \u4f8b\u5982\u5c0f\u5f37\u91cd80kg\u3001\u5c0f\u654f\u91cd50kg\u3002\u5c0f\u5f37\u548c\u5c0f\u654f\u7684\u9ad4\u91cd\u6bd4= 80: 50 = 8:5\uff0c\u662f\u6c92\u6709\u55ae\u4f4d\u7684\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.study-together.com\/edu\/secondary\/form2_maths\/rate-and-ratio\/\" \/>\n<meta property=\"og:locale\" content=\"zh_TW\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u7387\u53ca\u6bd4 (Rate and Ratio) &#187; \u4e2d\u4e8c\u6578\u5b78 &#187; \u9ede\u5148\u5b78\u5f97\u597d? &#187; \u9f4a\u9f4a\u6eab\" \/>\n<meta property=\"og:description\" content=\"\u7387\u662f\u300c\u5169\u500b\u4e0d\u540c\u91cf(\u55ae\u4f4d)\u76f8\u9664\uff0c\u6709\u55ae\u4f4d\u300d\u3002 \u4f8b\u5982\u5c0f\u660e\u6bcf\u5929\u5de5\u4f5c10\u5c0f\u6642\uff0c\u4e00\u5929\u7684\u4eba\u5de5\u662f$500\u3002\u800c\u6642\u85aa($50\/\u5c0f\u6642)\u5c31\u4fc2\u4e00\u500b\u7387\u3002\u6bd4\u662f\u300c\u5169\u500b\u76f8\u540c\u91cf(\u55ae\u4f4d)\u76f8\u9664\uff0c\u6ca1\u6709\u55ae\u4f4d\u300d\u3002 \u4f8b\u5982\u5c0f\u5f37\u91cd80kg\u3001\u5c0f\u654f\u91cd50kg\u3002\u5c0f\u5f37\u548c\u5c0f\u654f\u7684\u9ad4\u91cd\u6bd4= 80: 50 = 8:5\uff0c\u662f\u6c92\u6709\u55ae\u4f4d\u7684\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.study-together.com\/edu\/secondary\/form2_maths\/rate-and-ratio\/\" \/>\n<meta property=\"og:site_name\" content=\"\u9f4a\u9f4a\u6eab\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/-100355795002387\" \/>\n<meta property=\"article:modified_time\" content=\"2020-11-02T15:50:53+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.study-together.com\/edu\/wp-content\/uploads\/2020\/07\/homeSlide1_1600x800.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1600\" \/>\n\t<meta property=\"og:image:height\" content=\"800\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.study-together.com\\\/edu\\\/secondary\\\/form2_maths\\\/rate-and-ratio\\\/\",\"url\":\"https:\\\/\\\/www.study-together.com\\\/edu\\\/secondary\\\/form2_maths\\\/rate-and-ratio\\\/\",\"name\":\"\u7387\u53ca\u6bd4 (Rate and Ratio) &#187; \u4e2d\u4e8c\u6578\u5b78 &#187; \u9ede\u5148\u5b78\u5f97\u597d? &#187; \u9f4a\u9f4a\u6eab\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.study-together.com\\\/edu\\\/#website\"},\"datePublished\":\"2020-07-11T05:15:41+00:00\",\"dateModified\":\"2020-11-02T15:50:53+00:00\",\"description\":\"\u7387\u662f\u300c\u5169\u500b\u4e0d\u540c\u91cf(\u55ae\u4f4d)\u76f8\u9664\uff0c\u6709\u55ae\u4f4d\u300d\u3002 \u4f8b\u5982\u5c0f\u660e\u6bcf\u5929\u5de5\u4f5c10\u5c0f\u6642\uff0c\u4e00\u5929\u7684\u4eba\u5de5\u662f$500\u3002\u800c\u6642\u85aa($50\\\/\u5c0f\u6642)\u5c31\u4fc2\u4e00\u500b\u7387\u3002\u6bd4\u662f\u300c\u5169\u500b\u76f8\u540c\u91cf(\u55ae\u4f4d)\u76f8\u9664\uff0c\u6ca1\u6709\u55ae\u4f4d\u300d\u3002 \u4f8b\u5982\u5c0f\u5f37\u91cd80kg\u3001\u5c0f\u654f\u91cd50kg\u3002\u5c0f\u5f37\u548c\u5c0f\u654f\u7684\u9ad4\u91cd\u6bd4= 80: 50 = 8:5\uff0c\u662f\u6c92\u6709\u55ae\u4f4d\u7684\u3002\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.study-together.com\\\/edu\\\/secondary\\\/form2_maths\\\/rate-and-ratio\\\/#breadcrumb\"},\"inLanguage\":\"zh-TW\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.study-together.com\\\/edu\\\/secondary\\\/form2_maths\\\/rate-and-ratio\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.study-together.com\\\/edu\\\/secondary\\\/form2_maths\\\/rate-and-ratio\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.study-together.com\\\/edu\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u521d\u4e2d\u90e8\",\"item\":\"https:\\\/\\\/www.study-together.com\\\/edu\\\/secondary\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"\u4e2d\u4e8c\u6578\u5b78\",\"item\":\"https:\\\/\\\/www.study-together.com\\\/edu\\\/secondary\\\/form2_maths\\\/\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"6. \u7387\u53ca\u6bd4 (Rate and Ratio)\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.study-together.com\\\/edu\\\/#website\",\"url\":\"https:\\\/\\\/www.study-together.com\\\/edu\\\/\",\"name\":\"\u9f4a\u9f4a\u6eab\",\"description\":\"\u4e2d\u5b78\u53ca\u5c0f\u5b78\u8ab2\u7a0b - \u9f4a\u9f4a\u5b78!\u9f4a\u9f4a\u6eab!\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.study-together.com\\\/edu\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.study-together.com\\\/edu\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"zh-TW\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.study-together.com\\\/edu\\\/#organization\",\"name\":\"Study2Gather\",\"url\":\"https:\\\/\\\/www.study-together.com\\\/edu\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-TW\",\"@id\":\"https:\\\/\\\/www.study-together.com\\\/edu\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.study-together.com\\\/edu\\\/wp-content\\\/uploads\\\/2020\\\/06\\\/logo.png\",\"contentUrl\":\"https:\\\/\\\/www.study-together.com\\\/edu\\\/wp-content\\\/uploads\\\/2020\\\/06\\\/logo.png\",\"width\":250,\"height\":55,\"caption\":\"Study2Gather\"},\"image\":{\"@id\":\"https:\\\/\\\/www.study-together.com\\\/edu\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/-100355795002387\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u7387\u53ca\u6bd4 (Rate and Ratio) &#187; \u4e2d\u4e8c\u6578\u5b78 &#187; \u9ede\u5148\u5b78\u5f97\u597d? &#187; \u9f4a\u9f4a\u6eab","description":"\u7387\u662f\u300c\u5169\u500b\u4e0d\u540c\u91cf(\u55ae\u4f4d)\u76f8\u9664\uff0c\u6709\u55ae\u4f4d\u300d\u3002 \u4f8b\u5982\u5c0f\u660e\u6bcf\u5929\u5de5\u4f5c10\u5c0f\u6642\uff0c\u4e00\u5929\u7684\u4eba\u5de5\u662f$500\u3002\u800c\u6642\u85aa($50\/\u5c0f\u6642)\u5c31\u4fc2\u4e00\u500b\u7387\u3002\u6bd4\u662f\u300c\u5169\u500b\u76f8\u540c\u91cf(\u55ae\u4f4d)\u76f8\u9664\uff0c\u6ca1\u6709\u55ae\u4f4d\u300d\u3002 \u4f8b\u5982\u5c0f\u5f37\u91cd80kg\u3001\u5c0f\u654f\u91cd50kg\u3002\u5c0f\u5f37\u548c\u5c0f\u654f\u7684\u9ad4\u91cd\u6bd4= 80: 50 = 8:5\uff0c\u662f\u6c92\u6709\u55ae\u4f4d\u7684\u3002","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.study-together.com\/edu\/secondary\/form2_maths\/rate-and-ratio\/","og_locale":"zh_TW","og_type":"article","og_title":"\u7387\u53ca\u6bd4 (Rate and Ratio) &#187; \u4e2d\u4e8c\u6578\u5b78 &#187; \u9ede\u5148\u5b78\u5f97\u597d? &#187; \u9f4a\u9f4a\u6eab","og_description":"\u7387\u662f\u300c\u5169\u500b\u4e0d\u540c\u91cf(\u55ae\u4f4d)\u76f8\u9664\uff0c\u6709\u55ae\u4f4d\u300d\u3002 \u4f8b\u5982\u5c0f\u660e\u6bcf\u5929\u5de5\u4f5c10\u5c0f\u6642\uff0c\u4e00\u5929\u7684\u4eba\u5de5\u662f$500\u3002\u800c\u6642\u85aa($50\/\u5c0f\u6642)\u5c31\u4fc2\u4e00\u500b\u7387\u3002\u6bd4\u662f\u300c\u5169\u500b\u76f8\u540c\u91cf(\u55ae\u4f4d)\u76f8\u9664\uff0c\u6ca1\u6709\u55ae\u4f4d\u300d\u3002 \u4f8b\u5982\u5c0f\u5f37\u91cd80kg\u3001\u5c0f\u654f\u91cd50kg\u3002\u5c0f\u5f37\u548c\u5c0f\u654f\u7684\u9ad4\u91cd\u6bd4= 80: 50 = 8:5\uff0c\u662f\u6c92\u6709\u55ae\u4f4d\u7684\u3002","og_url":"https:\/\/www.study-together.com\/edu\/secondary\/form2_maths\/rate-and-ratio\/","og_site_name":"\u9f4a\u9f4a\u6eab","article_publisher":"https:\/\/www.facebook.com\/-100355795002387","article_modified_time":"2020-11-02T15:50:53+00:00","og_image":[{"width":1600,"height":800,"url":"https:\/\/www.study-together.com\/edu\/wp-content\/uploads\/2020\/07\/homeSlide1_1600x800.webp","type":"image\/webp"}],"twitter_card":"summary_large_image","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.study-together.com\/edu\/secondary\/form2_maths\/rate-and-ratio\/","url":"https:\/\/www.study-together.com\/edu\/secondary\/form2_maths\/rate-and-ratio\/","name":"\u7387\u53ca\u6bd4 (Rate and Ratio) &#187; \u4e2d\u4e8c\u6578\u5b78 &#187; \u9ede\u5148\u5b78\u5f97\u597d? &#187; \u9f4a\u9f4a\u6eab","isPartOf":{"@id":"https:\/\/www.study-together.com\/edu\/#website"},"datePublished":"2020-07-11T05:15:41+00:00","dateModified":"2020-11-02T15:50:53+00:00","description":"\u7387\u662f\u300c\u5169\u500b\u4e0d\u540c\u91cf(\u55ae\u4f4d)\u76f8\u9664\uff0c\u6709\u55ae\u4f4d\u300d\u3002 \u4f8b\u5982\u5c0f\u660e\u6bcf\u5929\u5de5\u4f5c10\u5c0f\u6642\uff0c\u4e00\u5929\u7684\u4eba\u5de5\u662f$500\u3002\u800c\u6642\u85aa($50\/\u5c0f\u6642)\u5c31\u4fc2\u4e00\u500b\u7387\u3002\u6bd4\u662f\u300c\u5169\u500b\u76f8\u540c\u91cf(\u55ae\u4f4d)\u76f8\u9664\uff0c\u6ca1\u6709\u55ae\u4f4d\u300d\u3002 \u4f8b\u5982\u5c0f\u5f37\u91cd80kg\u3001\u5c0f\u654f\u91cd50kg\u3002\u5c0f\u5f37\u548c\u5c0f\u654f\u7684\u9ad4\u91cd\u6bd4= 80: 50 = 8:5\uff0c\u662f\u6c92\u6709\u55ae\u4f4d\u7684\u3002","breadcrumb":{"@id":"https:\/\/www.study-together.com\/edu\/secondary\/form2_maths\/rate-and-ratio\/#breadcrumb"},"inLanguage":"zh-TW","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.study-together.com\/edu\/secondary\/form2_maths\/rate-and-ratio\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.study-together.com\/edu\/secondary\/form2_maths\/rate-and-ratio\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.study-together.com\/edu\/"},{"@type":"ListItem","position":2,"name":"\u521d\u4e2d\u90e8","item":"https:\/\/www.study-together.com\/edu\/secondary\/"},{"@type":"ListItem","position":3,"name":"\u4e2d\u4e8c\u6578\u5b78","item":"https:\/\/www.study-together.com\/edu\/secondary\/form2_maths\/"},{"@type":"ListItem","position":4,"name":"6. \u7387\u53ca\u6bd4 (Rate and Ratio)"}]},{"@type":"WebSite","@id":"https:\/\/www.study-together.com\/edu\/#website","url":"https:\/\/www.study-together.com\/edu\/","name":"\u9f4a\u9f4a\u6eab","description":"\u4e2d\u5b78\u53ca\u5c0f\u5b78\u8ab2\u7a0b - \u9f4a\u9f4a\u5b78!\u9f4a\u9f4a\u6eab!","publisher":{"@id":"https:\/\/www.study-together.com\/edu\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.study-together.com\/edu\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"zh-TW"},{"@type":"Organization","@id":"https:\/\/www.study-together.com\/edu\/#organization","name":"Study2Gather","url":"https:\/\/www.study-together.com\/edu\/","logo":{"@type":"ImageObject","inLanguage":"zh-TW","@id":"https:\/\/www.study-together.com\/edu\/#\/schema\/logo\/image\/","url":"https:\/\/www.study-together.com\/edu\/wp-content\/uploads\/2020\/06\/logo.png","contentUrl":"https:\/\/www.study-together.com\/edu\/wp-content\/uploads\/2020\/06\/logo.png","width":250,"height":55,"caption":"Study2Gather"},"image":{"@id":"https:\/\/www.study-together.com\/edu\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/-100355795002387"]}]}},"_links":{"self":[{"href":"https:\/\/www.study-together.com\/edu\/wp-json\/wp\/v2\/pages\/1268","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.study-together.com\/edu\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.study-together.com\/edu\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.study-together.com\/edu\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.study-together.com\/edu\/wp-json\/wp\/v2\/comments?post=1268"}],"version-history":[{"count":0,"href":"https:\/\/www.study-together.com\/edu\/wp-json\/wp\/v2\/pages\/1268\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.study-together.com\/edu\/wp-json\/wp\/v2\/pages\/1238"}],"wp:attachment":[{"href":"https:\/\/www.study-together.com\/edu\/wp-json\/wp\/v2\/media?parent=1268"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}