题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016032004-36808.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016032004-39091.png)
(1)求出
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016032004-28998.png)
(2)求当
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016032004-31510.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016032004-19796.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016032004-28998.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016032004-19796.png)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016032004-36808.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016032004-39091.png)
∴
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016032005-99057.png)
∴
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016032004-28998.png)
(2)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016032005-84491.png)
当
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016032004-31510.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016032005-23232.png)
∴
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016032004-19796.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031955-67322.png)
商场计划投入总资金5万元,所购进的甲、丙型号空调数量相同,乙型号数量不超过甲型号数量的一半.若设购买甲型号空调
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031955-62750.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031956-73873.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031956-73873.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031955-62750.png)
(2)商场如何采购空调才能获得最大利润?
(3)由于原材料上涨,商场决定将丙型号空调的售价提高
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031956-92401.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031956-78133.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031944-87090.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031944-17996.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031945-94949.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031945-64150.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031945-50369.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031945-55271.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031944-17996.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031946-55669.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031946-23120.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031944-17996.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031946-13637.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031946-61564.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031945-55271.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031944-17996.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031946-55669.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031944-17996.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031946-63311.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031946-55669.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031947-48594.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031947-17404.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031947-68682.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031944-17996.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031947-78274.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031948-85609.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031948-53697.png)
(1)观察下图,求
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031948-50971.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031944-17996.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031948-11897.png)
(2)设点
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031946-55669.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031945-50369.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031949-76659.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031944-17996.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031945-50369.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031949-46326.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031949-83011.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031949-69562.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031947-68682.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031949-83011.png)
(3)请直接写出当点
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031944-17996.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031945-55271.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031944-17996.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031949-72168.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031941-34411.png)
(1)设装运A种西瓜的车数为x,装运B种西瓜的车数为y,求y与x的函数关系式。
(2)如果装运每种西瓜的车辆数都不少于10辆,那么车辆的安排方案有几种?并写出每种安排方案。
(3)若要使此次销售获利达到预期利润25万元,应采取哪样的车辆安排方案?。
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031936-11426.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031936-77840.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031936-11464.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031925-65937.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031925-73768.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016031925-98809.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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