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The​ half-life of​ carbon-14 is 5600 years. If a piece of charcoal made from the wood of a tree shows only 66​% of the​ carbon-14 expected in living​ matter, when did the tree​ die?
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The​ half-life of​ carbon-14 is 5600 years. If a piece of charcoal made from the wood of a tree shows only 66​% of the​ carbon-14 expected in living​ matter, when did the tree​ die?

User Mark Hughes
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The tree died 3696 years ago because 66x5600=369600/10=3696.
User Cartalot
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