jennyodalis145 jennyodalis145
  • 12-10-2022
  • Mathematics
contestada

Element X is a radioactive isotope such that every 20 years, its mass decreases by
half. Given that the initial mass of a sample of Element X is 770 grams, how long
would it be until the mass of the sample reached 400 grams, to the nearest tenth of a
year?

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