Andrea runs a fruit store. She started Sunday with 20 cherries in stock. During
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Given that the half life of carbon-14 is 5,715 and that 6 g of the isotope is remaining after 1,000 years, the initial quantity of the isotope is obtained as follows:
Recall that the amount remaining of a radioactive substance with initial quantity No and half life t(1/2) after t years is given by:
Thus:
Recall that the amount remaining of a radioactive substance with initial quantity No and half life t(1/2) after t years is given by:
Thus: