Question

The record for the Boston Marathon's wheelchair division is 1 hour, 18 minutes, and 27 seconds. The Boston Marathon is 26.2 miles long. What was the average speed of the record winner of the wheelchair division?
At this rate about how long would it take this competitor to complete a 30-mile race?

Answer 1

First, you would convert the time of the record into minutes.
78.27 minutes

Then, you would divide that by 26.2.

I hope that helped :)

Answer 2

Answer:

20.04 miles/hour

1 hour 29 minutes 49.2 seconds

Step-by-step explanation:

The record for the Boston Marathon's wheelchair division = 1 hour 18 minutes and 27 seconds.

converting to hours ( 1 + 18 ÷ 60 +27 ÷ 3600 ) = 1.3075 hrs.

Speed = $\frac{Distance}{Time}$

           = $\frac{26.2}{1.3075}$

           = 20.04 miles per hour

At this speed 30-mile race will be cover = $\frac{\text{30miles}}{\text{20.04hours}}$ ≈ 1.497 hours

1.497 hours = 1 hour 29.82 minutes     [multiply 0.497 by 60 to find the number of minutes]

1 hour 29.82 minutes = 1 hour 29 minutes and 49.2 seconds   [multiply 0.82 by 60 to get seconds]

Average speed of the record winner is 20.04 miles per hour.

It will take 1 hour 29 minutes 49.2 seconds to complete a 30-mile race.