document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=973319>Question 973319</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me form an equation for the problem below:\r<BR>\n" );
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document.write( "Carbon-11 decays into boron at the rate of roughly 3.5% per minute. What is the half-life of carbon-11? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #595540 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39621)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=595540\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> C-11 retains 96.5% per minute.<BR>\n" );
document.write( "If initial quantity is 1 unit, then 1 minute passing,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0.965=1%2Ae%5E%28k%2A1%29 ALIGN=MIDDLE  ALT=\"0.965=1%2Ae%5E%28k%2A1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=ln%280.965%29=k ALIGN=MIDDLE  ALT=\"ln%280.965%29=k\"   DISABLED_style= \"max-width:90%; height:auto;\" >, and computing this, <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=k=-0.03563 ALIGN=MIDDLE  ALT=\"k=-0.03563\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "The decay equation is  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A=A%5Bo%5De%5E%28-0.03563t%29 ALIGN=MIDDLE  ALT=\"A=A%5Bo%5De%5E%28-0.03563t%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "HALF-LIFE\r<BR>\n" );
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document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A=1%2F2 ALIGN=MIDDLE  ALT=\"A=1%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >  and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%5Bo%5D=1 ALIGN=MIDDLE  ALT=\"A%5Bo%5D=1\"   DISABLED_style= \"max-width:90%; height:auto;\" >, and solve for t. </SPAN>\n" );
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