聪聪走60米用了5/6分钟.照这样的速度行走300米需要几分钟?
聪聪走60米用了
分钟.照这样的速度行走300米需要几分钟?
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数学人气:921 ℃时间:2019-11-13 20:08:15
优质解答
设照这样的速度行走300米需要x分钟,根据题意,得x:56=300:60x×60=300×56 60x=250 x=25060 x=256 x=416.答:照这样的速度行走300米需要416...
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