document.write( "Question 860147: Human hair from a grave in Africa proved to have only 67% of the carbon 14 of living tissue. When was the body buried? The half life of carbon 14 is 5730 years. \n" ); document.write( "

Algebra.Com's Answer #518160 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
\n" );
document.write( "Hi,
\n" );
document.write( "Q(t) = 
\n" );
document.write( "First find k
\n" );
document.write( "ln(.5)/-5730 = k = .00012
\n" );
document.write( " Q(t) = 
\n" );
document.write( "ln(.67)/-.00012 = t ~ 3337yrs  ago \n" );
document.write( "

\n" );