Homework Help: science

Posted by Cherie on Friday, May 25, 2012 at 12:09pm.

Using absolute dating,a fossil is dated to be 3 million years old and decomposed 1 half-life. If it takes the same fossil 12 million years to decompose to 4 half-lives,how old will the fossil be when it is measured to be at 3half-lives?

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