兴乐小学十月份用水68吨,比九月份节约用水15%.九月份用水多少吨?
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/28 14:23:28
![兴乐小学十月份用水68吨,比九月份节约用水15%.九月份用水多少吨?](/uploads/image/z/3575407-31-7.jpg?t=%E5%85%B4%E4%B9%90%E5%B0%8F%E5%AD%A6%E5%8D%81%E6%9C%88%E4%BB%BD%E7%94%A8%E6%B0%B468%E5%90%A8%2C%E6%AF%94%E4%B9%9D%E6%9C%88%E4%BB%BD%E8%8A%82%E7%BA%A6%E7%94%A8%E6%B0%B415%25.%E4%B9%9D%E6%9C%88%E4%BB%BD%E7%94%A8%E6%B0%B4%E5%A4%9A%E5%B0%91%E5%90%A8%3F)
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兴乐小学十月份用水68吨,比九月份节约用水15%.九月份用水多少吨?
兴乐小学十月份用水68吨,比九月份节约用水15%.九月份用水多少吨?
兴乐小学十月份用水68吨,比九月份节约用水15%.九月份用水多少吨?
68/(1-0.15)=80(吨)