相距 15x2÷(7-6)x(7+6)=30x13=390千米
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甲乙两车同时从两地相向而行,在离终点15km处相遇.已知甲车与乙车的速度比是7比6,求两地相距多少千米?
甲乙两车同时从两地相向而行,在离终点15km处相遇.已知甲车与乙车的速度比是7比6,求两地相距多少千米?
数学人气:289 ℃时间:2020-03-30 16:44:46
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