帮我解一道数学题,,,,急!!!!

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查看11 | 回复1 | 2020-2-23 03:52:03 | 显示全部楼层 |阅读模式
解:售价至少定为X元(1-5%)X≥1.5解得X≥1.5791.579≈1.58答:商家把售价至少定为1.58元,就能避免亏本
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千问 | 2020-2-23 03:52:03 | 显示全部楼层
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