题面:某工厂的年产值2000年是500万元,到2012年将要达到605万元,若平均每年年产值增长的百分率相同,求平均每年的年增长率。
推荐理由:1.以实际问题为背景,在巩固复习一元二次方程解法的基础上,与实际问题紧密相连,找到满足题意的根。2.总结增长率问题的一般解题方法。 讲解人:http://www.jiandan100.cn/teacher/41eada1179574bb381cb28039b17f940/ , 数学特级教师,连续多年参与北京市西城区数学统考命题并担任中考阅卷组长。 【答案及详解】 本部分内容设定了隐藏,需要回复后才能看到 根据题意列一元二次方程,你学会了吗? 选题来源:http://www.jiandan100.cn/c3/lesson/c/s142569/ 第5讲 张雁 专题 一元二次方程的应用 【20天大作战】年度召集令:http://bbs.jiandan100.cn/read.php?tid=680322 浏览本期“简单学习电子周报”完整目录:http://bbs.jiandan100.cn/read.php?tid=675523 |
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沙发#
发布于:2014-02-14 15:08
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板凳#
发布于:2014-02-14 10:23
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地板#
发布于:2014-02-13 18:02
某工厂的年产值2000年是500万元
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4楼#
发布于:2014-02-07 16:37
是有公式的
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5楼#
发布于:2014-02-05 19:12
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6楼#
发布于:2014-01-31 11:26
题面:某工厂的年产值2000年是500万元,到2012年将要达到605万元,若平均每年年产值增长的百分率相同,求平均每年的年增长率。
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7楼#
发布于:2013-12-23 21:15
致敬
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8楼#
发布于:2013-12-14 18:17
我非常喜欢这道题。
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