一辆汽车从A地到B地,己经行驶了4o千米,己经行驶的路程与剩下的路程的比是4:7,从A地到B地相距多少米?
一辆汽车从A地到B地,己经行驶了4o千米,己经行驶的路程与剩下的路程的比是4:7,从A地到B地相距多少米?
数学人气:849 ℃时间:2019-10-19 20:46:57
优质解答
40:X=4:7 解得X=7040+70=110X?是什么?x是没走的路程把没有走的路程设为X
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