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ZX-4E10B4A7F82023年5月练习卷(易) · 第 6 题
2023年5月练习卷(易) · 原库模块 2 · Q6 原库参考解析
A rectangular fence covers an rectangle area of 40 square plots. Each square plot has an area of \( r \). The length of rectangle area is\( x\sqrt{r} \) , which is 1.6 times of its width. What is the positive value of \( x \)?
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