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Summary: Miles per hour is calculated by knowing how long an object has been moving and how many miles it has covered in that span. Divide the number of miles traveled by the hours spent traveling to calculate miles per hour with help from a math teacher in this free video on basic math lessons.
Jimmy Chang has been a math teacher at St. Pete College for more than nine years. He has a Master's Degree in math and his specialties include calculus, algebra, liberal arts math and...read more
"My name is Jimmy Chang and I have been teaching college mathematics for nine years and it is actually a pretty straightforward process to figure out miles per hour as long as you know two things, 1) how long you have been driving and 2) how many miles you have covered during that span of time. So here is an example. Suppose you have given that you drove 300 miles in four hours. Now to figure out the miles per hour that you have driven simply divide the number of miles that you have driven divided by how many hours you have been driving. So basically in this case you have driven 300 miles over four hours and then you basically divide the two numbers. Now four actually does go into 300 evenly so four goes into 300 as a matter of fact 75 times so you have 75 miles in one hour. Now that means you average 75 miles per hour which is a pretty cruising speed especially on the interstate highway. So my name is Jimmy Chang and that is how you calculate miles per hour."
Comments
john1701 said
on 10/10/2009 How to calculate MPH with only an odometer and stop watch. Using a stop watch time exactly one mile or use the road makers to measure the mile (this must be done in seconds). Then divide the time it took to travel one mile into 3600. This will give you your average speed over that one mile.