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17 September, 20:22

One week Alaina ran 12 miles in 131.25 minutes. The next week, Alaina ran 12 miles in 119.5 minutes. If she ran a constant pace during each run, about how much faster did she run each mile in the second week than in the first week?

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Answers (2)
  1. 17 September, 21:04
    0
    58.75 seconds per mile
  2. 17 September, 21:55
    0
    58.75 seconds per mile

    Step-by-step explanation:

    Alaina ran the distance 131.25 - 119.5 = 11.75 minutes faster the second week. That's 705 seconds faster, or faster by ...

    ... (705 s) / (12 mi) = 58.75 s/mi
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