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19 September, 18:35

Paulo ran a marathon in about 1.56 x 10^4 s. Write Paulo's time in standard notation. Miguel ran a marathon in 4 h and 16 min. Who ran the race in the shorter amount of time? Show your work.

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  1. 19 September, 18:43
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    Paulo:

    1.56 * 10^4 s = 1.56 * 10,000 s = 15,600 s

    15,600 s : 60 = 260 min = 4 h 20 min.

    Miguel: 4 h 16 min.

    4 h 16 min < 4 h 20 min

    Answer: Miguel ran the race in the shorter amount of time.
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