Definition Of Mph

MPH stands for miles per hour.

More About MPH

Mph describes the speed or velocity of moving objects.

Examples of MPH

'John is driving at an average speed of 65 mph' implies that John will cover a distance 65 miles every hour if he maintains the same speed.

Video Examples: Mathematics : How to Convert Wheel RPM to MPH

Solved Example on Mph

Ques: Ethan jogged  miles in 45 minutes. What is his average speed in miles per hour?

Choices:

A. 4 mi/hr
B. 6 mi/hr
C. 5 mi/hr
D. None of the above
Correct Answer: B

Solution:

Step 1: A rate is a ratio of two measurements.
Step 2: Speed is a rate, which is a ratio of distance to time.
Step 3: Distance =  mi = 4.5 mi
Step 4: The time taken to jog  miles = 45 minutes =  hours [Convert minutes to hours.]
Step 5: = 0.75 hours [Divide.]
Step 6: The average speed of Ethan = 
Step 7: = 4.5 mi/0.75 hr [Substitute the values.]
Step 8: = 6 mi/hr [Divide.]
Step 9: So, Ethan jogged at an average speed of 6 mi/hr.

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