document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=133130>Question 133130</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The number of grams of a certain radioactive substance present at time t is given by the formula A = 100e^-0.002t, where t is the number of years.  Find the number of grams that are present at time t = 0 and time t = 300<BR>\n" );
document.write( "Thank you for your help<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #97373 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=97373\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The number of grams of a certain radioactive substance present at time t is given by the formula A = 100e^-0.002t, where t is the number of years. Find the number of grams that are present at time t = 0 and time t = 300<BR>\n" );
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document.write( "A(t) = 100e^-0.002t<BR>\n" );
document.write( "A(0) = 100*1 = 100 grams<BR>\n" );
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document.write( "A(300) = 100*e^(-0.002*300) = 100*0.548812<BR>\n" );
document.write( "= 54.8812 grams<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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