document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=159007>Question 159007</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Suppose that the function P=13+45 ln x.<BR>\n" );
document.write( "Use this model to determine in how many years (to two decimal places) it will take for the percent of spam to reach 95% provided that law enforcement regarding spammers does not change. <BR>\n" );
document.write( "I have it this far and cannot remember where to go from here. I need help!\r<BR>\n" );
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document.write( "95=13+45ln x<BR>\n" );
document.write( "-13=-13<BR>\n" );
document.write( "82=45ln x / 45=45<BR>\n" );
document.write( "1.82=ln x<BR>\n" );
document.write( "? ^ 1.82\r<BR>\n" );
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document.write( "What is the ?  value </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #117203 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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/cgi-bin/show-face.mpl?user=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=117203\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Suppose that the function P=13+45 ln x.<BR>\n" );
document.write( "Use this model to determine in how many years (to two decimal places) it will take for the percent of spam to reach 95% <BR>\n" );
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document.write( "13 + 45*ln(x) = 95<BR>\n" );
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document.write( "45*ln(x) = 95 - 13<BR>\n" );
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document.write( "45*ln(x) = 82<BR>\n" );
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document.write( "ln(x) = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=82%2F45 ALIGN=MIDDLE  ALT=\"82%2F45\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "ln(x) = 1.822; which is what you got<BR>\n" );
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document.write( "Using a calc, find e^x, enter 1.822<BR>\n" );
document.write( "x = 6.19 years </SPAN>\n" );
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