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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asked Apr 14, 2019 157k views

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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?

Mathematics
middle-school

Mark Hughes asked

by Mark Hughes

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The tree died 3696 years ago because 66x5600=369600/10=3696.

Cartalot answered Apr 18, 2019

by Cartalot

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