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阅读:5169回复:34

[每周一题]09-13[数学] 巧用一元二次方程解决实际问题

楼主#
更多 发布于:2013-09-12 15:00
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
【20天大作战】秋季战队进行时:http://bbs.jiandan100.cn/read.php?tid=679947
查看更多每周一题,请点击:http://bbs.jiandan100.cn/index.php?c=thread&fid=380&type=231
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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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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q430488
中级学员
中级学员
  • 粉丝9
  • 关注0
  • 发帖数366
  • 铜币785枚
  • 贡献值10点
  • 好评度5
  • 来自
  • 最后登录2015-05-29
  • 社区居民
  • 忠实会员
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。
寂灭处,人消散,雨落灯空,花渐时。曲水涌,天云变,风起夜黑,月明高。
hutianzhi100
新生入学
新生入学
  • 粉丝2
  • 关注0
  • 发帖数26
  • 铜币45枚
  • 贡献值0点
  • 好评度0
  • 来自
  • 最后登录2017-01-08
7楼#
发布于:2013-12-23 21:15
致敬
zhoujiaxuexitia
新生入学
新生入学
  • 粉丝9
  • 关注8
  • 发帖数16
  • 铜币100枚
  • 贡献值2点
  • 好评度0
  • 来自
  • 最后登录2017-07-16
  • 社区居民
8楼#
发布于:2013-12-14 18:17
我非常喜欢这道题。
lfq1982
学前班
学前班
  • 粉丝0
  • 关注0
  • 发帖数3
  • 铜币43枚
  • 贡献值0点
  • 好评度0
  • 来自
  • 最后登录2014-12-16
  • 社区居民
9楼#
发布于:2013-12-13 22:04
看看是啥
上一页
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