SOLUTION: A truck driver traveled at an average speed of 64 miles per hour on a 200-mile trip to pick up a load of freight. On the return trip (with the truck fully loaded), the average spee

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Question 913945: A truck driver traveled at an average speed of 64 miles per hour on a 200-mile trip to pick up a load of freight. On the return trip (with the truck fully loaded), the average speed was 45 miles per hour. Find the average speed for the round trip. (Round your answer to one decimal place.)
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
64*g=200
go =3.125 hours
45r=200
return =4.44444444 hours
t=3.125+4.44444444
t=7.56944444 hours
ave rate=2*200/7.56944444
ave rate=400/7.56944444
ave rate=52.8440367 mph
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