document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1130480>Question 1130480</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I could really use some help here.  This is a crazy difficult problem.  I am almost done with this class, but I need help breaking this down and solving.  Thanks.\r<BR>\n" );
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document.write( "The amount of&#8203; carbon-14 present in animal bones after t years is given by &#8203;P(t)=<BR>\n" );
document.write( "(P 0 e Superscript -0.00012 t)P0e &#8722;0.00012t. <BR>\n" );
document.write( "A bone has lost 11&#8203;% of its&#8203; carbon-14. How old is the&#8203; bone?<BR>\n" );
document.write( "The bone is ___years old.<BR>\n" );
document.write( "&#8203;(Round to the nearest integer as&#8203; needed.) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #747154 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</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=747154\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=pe%5E%28-0.00012t%29 ALIGN=MIDDLE  ALT=\"y=pe%5E%28-0.00012t%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=1-0.11=1%2Ae%5E%28-0.00012t%29 ALIGN=MIDDLE  ALT=\"1-0.11=1%2Ae%5E%28-0.00012t%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=0.89=e%5E%28-0.00012t%29 ALIGN=MIDDLE  ALT=\"0.89=e%5E%28-0.00012t%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Take natural logs of both sides and solve for t. </SPAN>\n" );
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