document.write( "Question 835283: The half life of carbon-14 is 5730 years. A sample has 5 grams of carbon-14 initially, and decays to 1 gram. If it follows the equation
\n" ); document.write( "\"+A=P%281%2F2%29%5E%28t%2Fh%29+\" where h is half life how long does it take to decay?
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Algebra.Com's Answer #503496 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
\"1=5%281%2F2%29%5E%28t%2F5730%29\"
\n" ); document.write( "\"%281%2F2%29%5E%28t%2F5730%29=1%2F5\"
\n" ); document.write( "\"t%2F5730=log%2810%2C%281%2F5%29%29%2Flog%2810%2C%281%2F2%29%29\"
\n" ); document.write( "\"t=5730%2A%28log%2810%2C%281%2F5%29%29%2Flog%2810%2C%281%2F2%29%29%29\"
\n" ); document.write( "or approximately
\n" ); document.write( "\"t=13305\" years
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