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1 July, 15:55

The daily energy requirement, E (kilojoules), for a person of mass m (kilograms) is calculated using the rule E=9m+8100

For Gavin, E = 8865

What is Gavin's mass

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  1. 1 July, 18:15
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    For this case we have the following equation:

    E = 9m + 8100

    Substituting E = 8865 we have:

    8865 = 9m + 8100

    Clearing m we have:

    9m = 8865-8100

    m = (8865-8100) / (9)

    m = (765) / (9)

    m = 85 Kg

    Answer:

    Gavin's mass is:

    m = 85 Kg
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