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OpenStudy (anonymous):
An artifact was found and tested for its carbon-14 content. If 86% of the original carbon-14 was still present, what is its probable age (to the nearest 100 years)? Use that carbon-14 has a half-life of 5,730 years.
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OpenStudy (espex):
Consider that all of your carbon is going to last 5730 years and you have 86% of it left. Figuring out how much you have lost will give you how much time has passed.
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