SOLUTION: two cars traveled in opposite directions from the same starting point. The rate of one car was 10km less than the rate of the other. After 4 hours the cars were 600km apart. Find t

Question 686131: two cars traveled in opposite directions from the same starting point. The rate of one car was 10km less than the rate of the other. After 4 hours the cars were 600km apart. Find the rate of each car
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
I think of one car as standing still and the other car
moving away from it at the sum of their speeds
Let = the speed of the faster car in km/hr
= the speed of the slower car in km/hr
---------------

The speeds of the cars were 80 km/hr and 70 km/hr
check:

and

OK
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