Mathematics, 05.05.2020 18:17 hailey200127

Element X decays radioactively with a half life of 11 minutes. If there are 870 grams of Element X, how long, to the nearest tenth of a minute, would it take the element to decay to 154 grams?

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Element X decays radioactively with a half life of 11 minutes. If there are 870 grams of Element X,...