Cars 6

At 9:00 am two cars started from the same town and traveled at a rate of 35 miles per hour and the other car traveled at a rate of 40 miles per hour. After how many hours will the cars be 30 miles apart?

Correct result:

t =  6 h


v1=35 mph v2=40 mph v=v2v1=4035=5 mph s=30 m t=s/v=30/5=6 h

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