Aaron将以X英里每小时的速度从家里去慢跑,然后在相同的路线下以Y英里每小时速度走回来.问你Aaron要慢跑多远距离,使他慢跑出去和走回来的时间和为t小时.
设跑m miles
方程为 m/x+m/y= t
方程自己解了
求翻译一道英文数学题 谢谢Aaron will jog from home at x miles per hour an
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