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Asked by thomas

Martin rides to Cambridge 30 miles away from home at the average rate of 10 miles per hour.He returns on a better road that is 50% longer where he can increase his rate by 100%.How much time does he save by
taking the better road on his return trip?

a. 2 1/4 minutes
b. 15 minutes
c. 45 minutes
d. 2 hours 15 minutes
e. 2 hours 45 minutes

please answer and explain
11 years ago

Answers

Answered by Ms. Sue
3 hours to Cambridge

45 miles at 20 mph = 2.25 hours



11 years ago

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