Mathematics, 05.02.2022 14:00 coryowens44

Element X decays radioactively with a half life of 7 minutes. If there are 500 grams of Element X, how long, to the nearest tenth of a minute, would it take the element to decay to 21 grams?

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Element X decays radioactively with a half life of 7 minutes. If there are 500 grams of Element X, h...

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