SOLUTION: Two cars are 400 mi apart. Both start at the same time and travel toward one another. They meet 4 hr later. If the speed of one car is 20 mph faster than the other, what is the spe
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Question 969317: Two cars are 400 mi apart. Both start at the same time and travel toward one another. They meet 4 hr later. If the speed of one car is 20 mph faster than the other, what is the speed of each car? Answer by solver91311(24713) (Show Source):
If they meet after 4 hours after having been 400 miles apart, they must be getting closer to each other at a speed of 100 miles per hour, which is to say the SUM of the two cars' speeds must be 100. So if one car is travelling at miles per hour and the other is going miles per hour, we know that
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John
My calculator said it, I believe it, that settles it
