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A car traveled frow Ato B in 30 minutes.The first half of the trip was covered at 50 mph cold theA car traveled form A to B in 30minutes .The first half of the trip was covered at 50 mph,cold the second half at 60 mph .What was the averagespeed?

分类: 作业答案 • 2022-08-03 20:04:12

问题描述：

A car traveled frow Ato B in 30 minutes.The first half of the trip was covered at 50 mph cold the
A car traveled form A to B in 30minutes .The first half of the trip was covered at 50 mph,cold the second half at 60 mph .What was the averagespeed?

答

一辆车从A地到B地需要30分钟.前半程速度50英里每小时,后半程60英里每小时,平均速度是多少?

A car traveled frow Ato B in 30 minutes.The first half of the trip was covered at 50 mph cold theA car traveled form A to B in 30minutes .The first half of the trip was covered at 50 mph,cold the second half at 60 mph .What was the averagespeed?

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