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Posted by on Thursday, May 31, 2012 at 12:37am.

Jesse jogs at a rate of 6 miles per hour. The next time she jogs, she increases her speed to 7 miles per hour. How long will it take her to jog 6 miles?

  • Math - , Thursday, May 31, 2012 at 1:50am

    First, Jesse covers 6 miles in 1 hour at 6 miles per hour (60 minutes).

    If his new speed is 7 miles per hour:

    Velocity= Distance/Time
    Solve for Time(T):
    TIME(T) =DISTANCE/VELOCITY...becomes:
    T(hr)=(6 miles X 1HR)/7 miles
    Miles cancel, leaves hour(T),therefore 6/7=.857hours
    (.857 hours X 60 min)/hr=
    51 MINUTES IS THE ANSWER

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