Mathematics, 17.05.2021 23:40 MartinTDL

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Helium is a gas lighter than air that is used in balloons. The density of helium is
approximately 0.19 kilograms pel cubic meter. You get 15 helium balloons for
your 15th birthday, each with a volume of 15 cubic meters. How many
kilograms of helium do the balloons contain, to the nearest hundredth?

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