13问答网 > 【数学应用题】列方程，解答的步骤要完整，谢谢

【数学应用题】列方程，解答的步骤要完整，谢谢

2025-03-15 22:56:54
推荐回答（2个）
回答1：

解：设还可以做x套，根据题意得

7.15*（1-1/13)*x=7.15*1000*(1-40%)*1/13

化简得
12/13*x=600*1/13

解得
x=50
答：节约的布还可以做50套。

回答2：

1000*7.15*(1-40%)/7.15*(1-1/13)=650套

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