Question

Hey how do you know of can run 1/4 of a mile in 22.5 seconds. At this rate, which equation can be used to determine how fast a hyena runs in miles per hour?

A. 1/4 divided by 22.5 = 40
B. 22.5 divided by 1/4 = 40
C. 1/4 divided by 22.5 = 90
D. 22.5 divided by 1/4 = 90

Answer 1

D

Explanation:

If its 1 quarter of a mile in 22.5, then we take s, seconds, times 4 which is 90.

SO we cross out A and B, and we're left with C AND D. Now we check the math on them.

.25/22.5 is 0.01111111 (repeating)

and 22.5/.25 is 90!