SOLUTION: During rush hour, Fernando can drive 20 miles using the side roads in the same time that it takes to travel 15 miles on the freeway. If Fernando's rate on the side roads is 9 mi/h
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Question 26368: During rush hour, Fernando can drive 20 miles using the side roads in the same time that it takes to travel 15 miles on the freeway. If Fernando's rate on the side roads is 9 mi/h faster than his rate on the freeway, find his rate on the side roads. Can someone help me figure this out? Answer by Paul(988) (Show Source):
You can put this solution on YOUR website! Rate on the freeway = x
Rate on the side road= x+9 ---> cross multiply
15(x+9)=20x
135+15x=20x
5x=135
x=27
27+9=36
Hence, his rate on the side road is 36mph and rate on the freeway is 27mph.
Paul.
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