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12 April, 02:11

Mr. Walker was hiking across Massachusetts. He has three days to cover 70 miles. On the first day, he walked 6 hours at a speed of 4 mph. On the second day he walked the same number of hours, but his speed was only 3 mph. On the third day, he walked 8 hours to cover the remaining distance. What was his speed on the third day?

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Answers (2)
  1. 12 April, 02:29
    0
    3.5 is the correct answer it was complicatited
  2. 12 April, 02:32
    0
    So 6 hours at 4 miles per hour

    4 miles per hour means 4 mieles in one hour

    6 hours

    distance=time times (distance pers unit of time)

    distance=6 times 4=24

    second day

    same number of hours=6

    speed=3

    distance=time times (distance per units of time)

    distance=6 times 3=18

    so we add 1 and 2 days together

    24+18=42

    so he has covered 42 mles

    he eed to cover 70

    70=42+rest

    subtract 42

    28=rest

    so he traveled 28 miles on third day

    in 8 hours

    sppeed=distance divided by time

    time=8

    distance=28

    28/8=14/4=7/2=3 and 1/2 miles per hour=3.5 miles per hour

    answer is 3.5 miles per hour
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