SOLUTION: Harry and Kerry started at the same point at the same time. They traveled in opposite directions on their bikes. Harry traveled at the rate of 9 km/h, and Kerry traveled at the rat

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Question 289755: Harry and Kerry started at the same point at the same time. They traveled in opposite directions on their bikes. Harry traveled at the rate of 9 km/h, and Kerry traveled at the rate if 11 km/h. After how many hours were they 60 km apart?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
9+11=20
60/20=3 hours
9*x+11*x=60
20x=60
x=3 hours