![](https:///quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https:///quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
类别 价格 | ![]() | ![]() |
进货价(元/个) | ![]() | ![]() |
销售价(元/个) | ![]() | ![]() |
![](https:///quesimg/Upload/formula/5a9f167445785292a76a4e70c76470a8.png)
![](https:///quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https:///quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https:///quesimg/Upload/formula/b53c7539ed297ea63b9ace6f5cc58ca8.png)
(2)第二次小李进货时,网店规定
![](https:///quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https:///quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https:///quesimg/Upload/formula/b53c7539ed297ea63b9ace6f5cc58ca8.png)
(3)小李第二次进货时采取了(2)中设计的方案,并且两次购进的玩偶全部售出,请从利润率的角度分析,对于小李来说哪一次更合算?
(注:利润率
![](https:///quesimg/Upload/formula/c64077e4246b74c82f5325ff965cef06.png)
![](http://static.xuejinqu.com/images/y-prise.png)
同类型试题
![](http://static.xuejinqu.com/images/medal.png)
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
![](http://static.xuejinqu.com/images/avatar.png)
![](http://static.xuejinqu.com/images/avatar.png)
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
![](http://static.xuejinqu.com/images/avatar.png)
![](http://static.xuejinqu.com/images/avatar.png)