SOLUTION: carlos maneuvered his way through the first 80 miles in 5 hours.then he doubled his speed for the last part of the trip.if the total trip was 400 miles,how many hours did it take c
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Question 630341: carlos maneuvered his way through the first 80 miles in 5 hours.then he doubled his speed for the last part of the trip.if the total trip was 400 miles,how many hours did it take carlos to maneuver the last part?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
carlos maneuvered his way through the first 80 miles in 5 hours.then he doubled his speed for the last part of the trip.if the total trip was 400 miles,how many hours did it take carlos to maneuver the last part?
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1st Part DATA:
distance = 80 miles ; time = 5 hrs ; rate = 80/5 = 16 mph
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2nd Part DATA:
distance = 400-80 = 320 miles ; rate = 2*16 = 32 mph
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Equation:
2nd Part time = distance/rate = 320/32 = 10 hrs
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Cheers,
Stan H.
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