SOLUTION: A fossilized leaf contains 29% of its normal amount of carbon-14. How old is the fossil (to the nearest year). Use the following formula.

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Question 852102: A fossilized leaf contains 29% of its normal amount of carbon-14. How old is the fossil (to the nearest year). Use the following formula.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
Q%28t%29+=+Q%5B0%5De%5E%28-kt+%29
Q%28t%29+=+Q%5B0%5De%5E%28-.00012t%29 |no formula followed: assume k = .00012 for C-14
Q%28t%29%2FQ%5B0%5D+=+.29+=+e%5E%28-.00012t%29
ln(.29)/(-.00012) = t