数学应用题1道在即将来领的"六一"联欢会上要准备40瓶矿泉水,A、B两家超市原来的价格都是2.5元/瓶,现分别高如下促销活动.A超市:“买3送1”,即买3贫矿泉水免费赠送1瓶,多买多送B超市:“满
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/18 11:37:17
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