The record for the boston marathon's wheelchair division is 1 hour, 18 minutes, and 27 seconds.

a: the boston marathon is 26.2 miles long. what was the average speed of the record winner of the wheelchair division?

b. at this rate, about how long would it take this competitor to complete a 30-mile race?

answer both

A.) To find the average speed, you have to divide the distance by the time. But first, let's convert the time into hours:

Time = 1 hour + (18 min*(1 h/ 60min)) + (27 s * (1 h/3,600s))
Time = 1.3075 hours
Average Speed = Distance/Time = 26.2 miles/1.3075 hours
Average Speed = 20.038 miles per hour

b.) Using the speed calculated in part a, we can determine the time by dividing the given distance to the average speed.

Time = Distance/Speed
Time = 30 miles/2.038 miles/hour
Time = 14.72 hours

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