document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=145158>Question 145158</A>: <I><SPAN STYLE=\"word-break: break-all;\"> We're studying Logarithms in school and I understand it but have problems with word problems. Don't know how to even begin to set up an equation in form of a logarithm (possibly) to solve this word problem.  Any help would be very appreciated.  Thanks.\r<BR>\n" );
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document.write( "A computer is infected with the Sasser virus.  Assume that it infects 20 other computers within 5 minutes; and that these PCs and servers each infect 20 more machines within another five minutes, etc.  How long until 100 million computers are infected? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #105838 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=105838\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let t=\"time in minutes\" __ 10^8=1[20^(t/5)] __ taking log __ log(10^8)=(t/5)log(20)\r<BR>\n" );
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document.write( "dividing by log(20) __ 8/log(20)=t/5 __ multiplying by 5 __ 40/log(20)=t </SPAN>\n" );
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