Question 611232: Two cars leave the origin; one goes north at 55 mph and the other goes south at 30 mph. After how many hours will they be 350 miles apart? Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! Two cars leave the origin; one goes north at 55 mph and the other goes south at 30 mph. After how many hours will they be 350 miles apart?
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Going in opposite directions, the speeds are added.
55+30 = 85 mi/hr
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d = r*t
t = d/r