Question

when running a half-marathon (13.1 miles), it took david 7 minutes to run from mile marker 1 to mile marker 2, and 19 minutes to run from mile marker 2 to mile marker 4.

Answer 1

To calculate the time it takes for a marathon runner to complete a marathon, we can use the formula time = distance / speed. Given that the runner averages 9.5 mi/h, it takes the marathon runner approximately 2 hours and 45 minutes to complete a marathon.

Step-by-step explanation:

To calculate the time it takes for a marathon runner to complete a marathon, we can use the formula:

time = distance / speed

Given that the runner averages 9.5 mi/h, we can substitute the values into the formula:

time = 26.22 mi / 9.5 mi/h

Simplifying the calculation gives us:

time = 2.76 hours

Therefore, it takes the marathon runner approximately 2 hours and 45 minutes to complete a marathon.