Asked by marry

my teacher gave us this question and im lost.
Anthropologists have found an old campsite in a remote location. After calculating the carbon-14 in the wood, they determine that there is 1/8 of the original material left. How many half-lives of carbon-14 have decayed and how many years old is the campsite?

Answers

Answered by drwls
The campsite is three half-lives old.
(1/2)^3 = 1/8

One C-14 half life is about 5570 years.

3 x 5570 = ____ yrs
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