Mathematics, 05.12.2019 01:31 kuehlthau03
Chloe and libby want to tie ryan to a bunch of approximately spherical helium balloons of diameter 0.3m. the volume of each balloon can be approximated using the formula 4r³. given that 1 litre of helium can lift 1g, and that ryan weighs 5 stone and 5lb, estimate how many balloons they need to make him float.
Answers: 2
is the radius (
), then:
), you must divide the liters of helium needed to lift the weight of Ryan by the volume of a balloon, then the result is:
≈2,525 balloons.
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