5 A jet traveled 1875 miles in 5 hours.

Find these rates:

a. miles per hour

375 420 mph

375 mph

b. miles per minute

7.75 mi/min

6.25 mi/min

c. minutes per mile

0.16 min/mi

0.22 min/mi

a) 375 mph

b) 6.25 mi/min

c) 0.16 min/mi

Step-by-step explanation:

To find miles per hour, divide miles by hours:

a) (1875 mi) / (5 h) = 375 mi/h

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b) You have hours in the denominator, and you want minutes there, so the conversion factor is (1 h) / (60 min):

(375 mi/h) · (1 h) / (60 min) = (375/60) mi/min = 6.25 mi/min

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c) Minutes per mile is the inverse of the value you just calculated:

1 / (6.25 mi/min) = (1/6.25) min/mi = 0.16 min/mi