Question

Please help! (20 points)

Mrs. Stewart has 8 minutes to enter 120 test grades into her computer. What is the minimum rate at which she should be entering the grades if she wants to finish in time?
A. 4 grades per minute
B. 15 grades per minute
C. 16 grades per minute
D. 960 grades per minute

Answer 1

C. 15 grades per minute

If you do 15x8 you get 120 so if you reverse it and use division 8 divided by 120 you get 15

Hope that makes sense

Answer 2

C. 15 grades per minute.

Explanation:

Divide 120 by 8

120÷8=15

It's 15 because multiplying it by 8 instead of dividing it gives you 120.