SOLUTION: smitty jogged to school at a rate of 4.25 mph. his father dropped off his bike and he rode bike home at a rate of 10.8 mph. the round trip took him 45 mins. calculate how far it is

Question 1130822: smitty jogged to school at a rate of 4.25 mph. his father dropped off his bike and he rode bike home at a rate of 10.8 mph. the round trip took him 45 mins. calculate how far it is from the school to his house in miles.
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!

                  SPEED       TIME        DISTANCE

JOG               4.25        d/4.25        d

BIKE             10.8         d/10.8        d

TOTAL                        0.75

The sum of the times equation will give the distance each way.

You have a few choices for how you want to manage the computations.

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Time for round trip was given as 45 minutes, which is three quarters of an hour, which is 0.75 hour; commonly known fraction and decimal.
Units best for this rates example are MILES, HOURS, and MILES-per-HOUR.
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