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4 February, 16:31

A man hiked a distance of 9 miles into the country. he rode back in a car along the same route at the rate of 27 mph. if the entire trip took 3 hours and 20 min, find his rate while walking. answer: mph

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  1. 4 February, 16:41
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    Let W be the man's speed while walking through the country

    at 27 mph he will take 9/27=1/3 hours = 20 min to ride back the nine miles by car

    so he must have hiked for 3h20m - 20m = 3 hours

    mph, as the name suggests, is miles divided per hours:

    so we have:

    W = 9/3=3mph

    his walking rate/speed/velocity is 3 miles per hour
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