Final answer:
The marathon runner will take approximately 2 hours and 45 minutes to complete a 26.22 mile marathon at an average speed of 9.5 mi/h.
Step-by-step explanation:
To find out how long it will take the marathon runner to complete a 26.22 mile marathon at an average speed of 9.5 mi/h, we can use the formula distance = speed × time.
Rearranging the formula, we get time = distance/speed.
Substituting the values, we have time = 26.22 mi / 9.5 mi/h = 2.76 hours or 2 hours and 45 minutes.
Therefore, it will take the marathon runner approximately 2 hours and 45 minutes to complete the marathon.