Mathematics, 13.04.2021 02:20, xojade

Element X decays radioactively with a half life of 6 minutes. If there are 900 grams of Element X, how long, to the nearest tenth of a minute, would it take the element to decay to 121 grams?

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Element X decays radioactively with a half life of 6 minutes. If there are 900 grams of Element X, h...