A mule deer can run 1/4 of a mile in 25 seconds. At this rate which expression can be used to determine how fast a mule deer runs in miles per hour
Mathematics · College · Tue Nov 03 2020
Answered on
To convert miles/second into miles/hour, multiply miles/second by 60 seconds/1 minute then multiply the product by 60minutes/ hour. Since the given is 1/4 of a mile in 25 seconds, multiply it by 60 seconds/1 minute.
Convert ¼ into decimal so 1 divided by 4 is 0.25.
> 0.25 miles/ 25 seconds x 60 seconds/1 minute
> 0.25 miles/ 25 x 60 /1 minute
> 0.25 miles * 60 /25 minutes
> 15 miles/ 25 minutes
Multiply 15 miles/ 25 minutes by 60minutes/ 1hour
> 15 miles/ 25 minutes x 60minutes/ 1 hour
> 15 miles/25 x 60/1 hour
>15 miles *60 /25*1 hour
> 900miles / 25 hour
Divide both numerator and denominator by 25
> (900/25)miles / (25/25) hour
> 36 miles/ hour
The Mule deer runs 36 miles/ hour.