Question

All of the following are equivalent except ______.

a. 15/5
b. 5 is to 3
c. 45/37
d. 2.5:4.5

Answer 1

The correct answer is c. 45/37.

Step-by-step explanation:

The equivalent ratios are 15/5, 5 is to 3, and 2.5:4.5. To determine which ratio is not equivalent, we can compare them to the remaining option, 45/37. If we simplify each ratio, we find that:

15/5 = 3

5 is to 3 = 5/3

2.5:4.5 = 5:9

However, 45/37 cannot be simplified further. Therefore, the correct answer is c. 45/37.