Alison can swim 75 feet in 12 seconds. What is her rate to the nearest mile per hour?

SAT

1 answer:

erastova [34]3 years ago

5 0

Answer: 4 miles per hour.

Explanation:

We can calculate her feet per second: 75 ft/12 sec is 6.25 ft/sec

Then convert to miles per hour. 1 mph = 1.46667 ft/sec

Divide 6.25/1.46667 = 4.261353951 mph

Round that to 4 ¹/₄ mph or, as per the directions in this question, "to the nearest mile per hour.

4 mph.

It is also possible to get a similar answer by changing the feet to a fraction of a mile, (about 0.142mi) and the time to a fraction of an hour (about 0.00333) and dividing those numbers, but that may be doing too much!

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