Question

Dr. Cheeks tries to run at least 45 rotations on her hamster wheel each week. She has already run 6 rotations. Which inequality shows how many more rotations, r, she would have to run to meet her weekly goal?
A. r-6>45
B. r-6>45
C. r+6>45
D.r+6<45

Answer 1

C is the best answer, although an even better answer would be r+6 ≥ 45. We know that she runs at least 45 rotations each week and she's already completed 6 rotations. Since the value of r is how many more rotations she needs to run to meet her weekly quota of rotations, C is the best answer since she can run 45 rotations or more to meet her quota. 

Answer 2

Answer: C. r+6>45

Step-by-step explanation:

Since, Dr. Cheeks tries to run at least 45 rotations on her hamster wheel each week.

If she runs r rotations then, for the value of r,  $45\leq r$

Since, If she has already 6 rotations

Therefore total rotation she has = r+6

Thus, if $45\leq r$ ⇒$45$

So, Option C is the correct option.