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数学五年级上册课本124页第6题答案(用方程解答)

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数学五年级上册课本124页第6题答案(用方程解答)
一条公路长360m,甲乙两支施工队同时从公路的两端往中间铺柏油。甲队的施工速度是乙队的1.25倍,4天后这条公路全部铺完。甲乙两队每天分别铺柏油多少米?(用方程解答)急急急············································································································
数学五年级上册课本124页第6题答案(用方程解答)
设乙队每天速度为X则甲队为1.25X 方程为4X+5X=360解X=40
再问: 5X在哪来的?
再答: 4乘1.25x