SOLUTION: Solve the following by setting up an appropriate equation: 2 cars traveling at a constant speed- one at 60 mph and the other at 70 mph- start at the same time from the same poin

Question 575260: Solve the following by setting up an appropriate equation:
2 cars traveling at a constant speed- one at 60 mph and the other at 70 mph- start at the same time from the same point traveling in the same direction. After how many hours will the distance between them be 40 mi?
Answer by chana(69) (Show Source): You can put this solution on YOUR website!
2 cars traveling at a constant speed- one at 60 mph and the other at 70 mph- start at the same time from the same point traveling in the same direction. After how many hours will the distance between them be 40 mi
sol:
dist = speed * time
so let time =x
70 * x - 60 * x = 40
solving for x you get 4 hours
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