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College Algebra 2

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The number of kilograms of water in the human body varies dirctly as the mass of the body. An 84-kg person contains 64-kg of water. How many kg of water is in a 63-kg person?

  • College Algebra 2 - ,

    water = k(mass) , where k is a constant
    given water = 64 kg when mass = 84 kg
    64 = k(84)
    k = 64/84 = 16/21

    water = (16/21)(mass)
    when mass = 63
    water = (16/21)(63) = 48 kg

  • College Algebra 2 - ,

    80.try doing it. It easy

  • College Algebra 2 - ,

    The number of kilograms W of water in a human varies directly to the mass of the body. A 96_kg person contains 64 kg of water. How many kilograms of water are in a 60_kg person?

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