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?
A.
7 miles per week
B.
10 miles per week
C.
6 miles per week
D.
9 miles per week
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.
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.
Total number of miles Laura has run = 81
Number of weeks she has been training = 9
Rate = Total number of miles / Number of weeks
Rate = 81 miles / 9 weeks
Simplifying this equation, we get:
Rate = 9 miles per week
Therefore, the correct answer is D. 9 miles per week.
To find the rate at which Laura has been running, we need to divide the total distance she has run by the number of weeks she has been training.
Total distance = 81 miles
Number of weeks = 9 weeks
Rate = Total distance / Number of weeks
Rate = 81 miles / 9 weeks
Dividing 81 by 9 gives us:
Rate = 9 miles per week
Therefore, Laura has been running at a rate of 9 miles per week. The correct answer is option D.