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Mathematics 12 Online
OpenStudy (anonymous):

jim and jack run a 36 mile marathon.jim runs 12 miles per hour and jack run 9 miles per hour.how long will it take jim to finish to the nearest minute?

OpenStudy (radar):

Using the d=st or distance equals speed times time. Plug in what you got for Jim, d=36 miles s=12mph Solve for time (units are appropriate) 36=12t Solve by dividing by 12: t=3 hours or 180 minutes

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