SOLUTION: Ronald rode away from home in a car at rate of 32 miles per hour. He walked back at the rate of 4 miles per hour. The round trip required 2.25 hours. How far did ronald ride?

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Ronald rode away from home in a car at rate of 32 miles per hour. He walked back at the rate of 4 miles per hour. The round trip required 2.25 hours. How far did ronald ride?      Log On


   

Question 887096: Ronald rode away from home in a car at rate of 32 miles per hour. He walked back at the rate of 4 miles per hour. The round trip required 2.25 hours. How far did ronald ride?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Ronald rode away from home in a car at rate of 32 miles per hour. He walked back at the rate of 4 miles per hour. The round trip required 2.25 hours. How far did ronald ride?
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Avg speed for the round trip is
2*32*4/(32+4) = 64/9 mi/hr
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RT distance = r*t = (64/9)*2.25 = 16 miles
--> 8 miles each way