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25 February, 22:01

Marika is training for a track race She starts by sprinting 100 yards. She gradually increases her distance, adding 4 yards a day for 21 days how far does she sprint on day 21

using an=100 + (n-1) 4

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  1. 26 February, 01:37
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    For this case, you must use the given expression, taking into account that:

    n = number of days.

    We have then that for day 21, n = 21.

    Substituting we have:

    a21 = 100 + (21-1) * 4

    a21 = 180

    Answer:

    she sprints 180 yards on day 21
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