A hyena can run 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? (5 points)

Group of answer choices

= 40 miles per hour

= 40 miles per hour

= 90 miles per hour

= 90 miles per hour

40 miles per hour

Step-by-step explanation:

If we know the distance someone or something ran and how long it took them to run, then we know their rate.

Because rate can be defined as .

We want the answer to be in miles per hour, so convert 22.5 seconds into hours by dividing 22.5 by 3600.

22.5 / 3600 = 0.00625

And because we have a decimal and a fraction, it is best to convert the fraction into a decimal so all units are the same.

1 / 4 = 0.25

Plug in the values.

0.25 / 0.00625 = 40

So, the hyena would be running at 40 mph.

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