设甲单速为X,乙为Y
方程组
48+(48/X-2)Y=72
36+(36/X+3)Y=72
X=6,Y=4
A,B距72KM,甲乙分别从A,B相向而行,甲早出发2h,在距B地24千米向遇,乙早出发3h,在AB中点向隅,
A,B距72KM,甲乙分别从A,B相向而行,甲早出发2h,在距B地24千米向遇,乙早出发3h,在AB中点向隅,
数学人气:592 ℃时间:2019-10-19 18:46:52
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