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5 December, 07:51

A hot air balloon holds 2,200 cubic meters of helium. The density of helium is 0.1785 kilograms per cubic meter. How many kilograms of helium does the balloon contain, rounded to the nearest tenth of a kilogram?

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  1. 5 December, 09:20
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    The 392.7 kilogram of helium does the balloon contain.

    Step-by-step explanation:

    Formula

    Density = / frac{Mass}{Volume}

    As given

    A hot air balloon holds 2,200 cubic meters of helium.

    The density of helium is 0.1785 kilograms per cubic meter.

    Density = 0.1785 kilograms per cubic meter

    Volume = 2200 cubic meters

    Put in the formula

    0.1785 = / frac{Mass}{2200}

    Mass = 2200/times 0.1785

    Mass = 392.7 kilogram

    Therefore the 392.7 kilogram of helium does the balloon contain.
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