SOLUTION: Carbon-14 has a half-life of 5,730 years. A fossil is found that has 12% of the carbon-14 found in a living sample. How old is the fossil? (Round your answer to the nearest year.)
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Question 1153002: Carbon-14 has a half-life of 5,730 years. A fossil is found that has 12% of the carbon-14 found in a living sample. How old is the fossil? (Round your answer to the nearest year.)
Answer by josgarithmetic(39625) (Show Source): You can put this solution on YOUR website!
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You want to find x for p=100 and y=12.
Taking logarithms of right and left sides,
and a few algebra steps:
Compute, and do the rounding that you need.
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