How to Find MPH With Feet & Minutes

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Finding miles per hour with feet and minutes requires you to format the information you know as an equation. Find MPH with feet and minutes with help from an experienced mathematics educator in this free video clip.

Part of the Video Series: Math Lessons & Tips
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Video Transcript

Hi, my name is Marija, and today I'm going to tell you how to find miles per hour with feet and minutes. So if you were given that you are going 5,280 feet per 120 minutes but you want to know how many miles per hour you are going, you first have to convert each of these parts of this ratio into the miles and the hours. So to convert 5,280 feet into miles, you need to know the conversion rate which happens to be that 5,280 feet are in one mile. So now instead of writing 5,280 feet I could actually write one mile. You'd now have to convert the minutes into hours. So if I know that there are 60 minutes in one hour, then I know that there are actually two hours in 120 minutes. Now we have the number of miles in two hours and we're going to have to convert this to miles per hour. So we take our new ratio, one mile in two hours and we ask ourselves, how many miles is that in one hour and we're going to go ahead and cross multiply 1 times 1 is 1, 2 times X is 2X and we're going to solve our equation to get that X equals 1/2 and the X was our mile so that means that we're going one half of a mile per hour if we were going 5,280 feet in 120 minutes.

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