Laura is training to run a race. She keeps track of the number of miles she runs. She has been training for 9 weeks, and she has run a total of 81 miles. At what rate has she been running, in miles per week?

Question

A.
7 miles per week
B.
10 miles per week
C.
6 miles per week
D.
9 miles per week

Answer 1

To find the rate at which Laura has been running, we divide the total number of miles she has run by the number of weeks she has been training.
81 miles / 9 weeks = 9 miles per week.

Therefore, the rate at which Laura has been running is 9 miles per week.
The answer is D. 9 miles per week.