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Math Help - How many mph to travel 2 miles in 13 minutes?

  1. #1
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    How many mph to travel 2 miles in 13 minutes?

    How many miles per hour would you need to be going to go 2 miles in 13 minutes, and how would you calculate that?
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    Re: How many mph to travel 2 miles in 13 minutes?

    2 miles in 13 minutes
    speed = distance / time = 2/13 miles per minute
    = 2/(13 x 60 ) miles per hour
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    Re: How many mph to travel 2 miles in 13 minutes?

    Use ratios and cross multiply.

     \frac{2}{13} = \frac{x}{60}

     13x = 120

     x= \frac{120}{13}
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    Re: How many mph to travel 2 miles in 13 minutes?

    Or, note that since there are 60 minutes in an hour, 13 minutes is 13/60 of an hour. Going 2 miles in 13/60 hour, you are going 2/(13/60)= 2(60/13)= 120/13 miles per hour.
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    Re: How many mph to travel 2 miles in 13 minutes?

    Quote Originally Posted by ibdutt View Post
    2 miles in 13 minutes
    speed = distance / time = 2/13 miles per minute
    = 2/(13 x 60 ) miles per hour
    This is wrong. Perhaps you meant to write (2/13)x60.
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  6. #6
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    Re: How many mph to travel 2 miles in 13 minutes?

    Quote Originally Posted by Jerick View Post
    How many miles per hour would you need to be going to go 2 miles in 13 minutes, and how would you calculate that?
    Set up a ratio of "miles : minutes"

    2 : 13
    2/13 : 1
    60 x 2/13 : 60
    120/13 : 60
    9.23 : 60


    It's about 9.23 mph.
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  7. #7
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    Re: How many mph to travel 2 miles in 13 minutes?

    firstly you will need to find the hours that were used.
    using the ratio minutes : hours

    60mins = 1hr
    13mins = 13/60
    = 0.2166666666666667
    then you have to find the speed which is the miles per hour

    speed = distance/time
    = 2/ 0.2166666666666667
    = 9.230769230769229miles per hour
    you can round it up to 3sf making it;

    speed = 9.23mph
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