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March 1, 2015

Posted by **Vince** on Wednesday, December 8, 2010 at 9:17pm.

Only 10% of the carbon-14 in a samll wooden bowl remains. How old is the bowl?

Half life of carbon is 5700 years.

- College Algebra -
**Reiny**, Wednesday, December 8, 2010 at 11:12pm.1 = .5^(t/5700)

t/5700 = log .1/log .5

t = 18935

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