document.write( "Question 378165: The half-life of the radioactive element plutonium 239 is 25000 years. If 16 grams are present initally how much is left after 60000 years? \n" ); document.write( "

Algebra.Com's Answer #268736 by Fombitz(32388) $\"\"$ $\"About$

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$\"N%28t%29=N%5B0%5D%2A%281%2F2%29%5E%28t%2Ft%5Bh%5D%29\"$
\n" ); document.write( " $\"N=16%2A%281%2F2%29%5E%2860%2F25%29\"$
\n" ); document.write( " $\"N=16%2A%281%2F2%29%5E%2812%2F5%29\"$
\n" ); document.write( " $\"N=16%2A%280.1895%29\"$
\n" ); document.write( " $\"highlight%28N=3.03%29\"$ grams
\n" ); document.write( " \n" ); document.write( "

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