计算或解方程.
(1)计算:
.
(2)解方程:
.
(1)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c921d97291b173550830515a6369ffc.png)
(2)解方程:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ef79978bbc21860dfa2cc87a26113da.png)
更新时间:2023-01-19 19:23:58
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【推荐1】如图,在一块长16米、宽10米的矩形场地上修建一横一竖两条甬道,场地其余部分种植草坪,已知横、竖甬道的宽度之比为2:1,设竖甬道的宽度为x米,草坪面积为y平方米.
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