document.write( "Question 598559: The strontium-90 in a nuclear reactor decays continuously. If 200 mg is present initially, the amount present after t years is given by A(t)=200e^-0.0248t. Find, to nearest hundredth, the amount letft after 50 years.\r
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Algebra.Com's Answer #378679 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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The strontium-90 in a nuclear reactor decays continuously.
\n" ); document.write( " If 200 mg is present initially, the amount present after t years is given by A(t) = 200e^-0.0248t. Find, to nearest hundredth, the amount left after 50 years.
\n" ); document.write( ":
\n" ); document.write( "50 yrs means t = 50
\n" ); document.write( "A = $\"200%2Ae%5E%28-.0248%2A50%29\"$
\n" ); document.write( ":
\n" ); document.write( "A = $\"200%2Ae%5E%28-1.24%29\"$
\n" ); document.write( "A = 200 * .289384
\n" ); document.write( "A = 57.88 mg after 50 yrs \n" ); document.write( "

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