SOLUTION: Carbon-14 has a half-life of 5,730 years. A fossil is found that has 26% of the carbon-14 found in a living sample. How old is the fossil? (Round your answer to the nearest year.)

Question 1128145: Carbon-14 has a half-life of 5,730 years. A fossil is found that has 26% of the carbon-14 found in a living sample. How old is the fossil? (Round your answer to the nearest year.)
Answer by greenestamps(13198) (Show Source): You can put this solution on YOUR website!

If x is the number of half lives, then the fraction remaining is .

= 1.943416472 to several decimal places.

The age of the fossil is then to the nearest whole number.

ANSWER: the age of the fossil is 11136 years.
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