# Algebra

posted by Kim Johnson

An artifact was found and tested for its carbon-14 content. If 74% of the orginal carbon-14 was still present, what is its probable age (to the nearest 100 years)? (Carbon-14 has a half life of 5730 years).

1. Steve

(1/2)^(t/5730) = .74
t = 5730 * log(.74)/log(0.5)

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