Mathematics, 12.12.2020 17:00 delgadillogiselle711

Element X is a radioactive isotope such that every 86 years, its mass decreases by half. Given that the initial mass of a sample of Element X is 730 grams, how much of
the element would remain after 9 years, to the nearest whole number?

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Element X is a radioactive isotope such that every 86 years, its mass decreases by half. Given that...