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8 December, 20:42

You are training for a marathon. On the first three days of training, you run for 2, 4, and 5 miles. How many miles should you run on the fourth day so that you run a mean of 4 miles per day?

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  1. 8 December, 22:51
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    on the fourth day the person should run 5 miles to get a mean of 4 miles

    Step-by-step explanation:

    Arithmetic mean = total values / no. of values

    4=2+4+5+x/4

    16=11+x

    x=16-11

    x=5 miles
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