If 8 g of a radioactive substance are present initially and 5 yr later only 4 0 g remain how much of the substance to the

Question

If 8 g of a radioactive substance are present initially and 5 yr later only 4 0 g remain how much of the substance to the nearest tenth of a gram will be present after 11 yr After 11 yr there will be g of the radioactive substance Do not round until the final answer Then round to the nearest tenth as needed

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