document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=170101>Question 170101</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0321233832/algebrahomeworkh>elementary and Intermediate algebra concepts and application</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> can someone help me I'm 60 years old and I really don't understand this problem please please help.  thank you\r<BR>\n" );
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document.write( ": Ratio and Proportion \r<BR>\n" );
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document.write( "A new virus is released on the internet; the administrator of a department's Local Area Network ( LAN) is given five minutes by a manager to estimate the impact. The administrator samples 15 of the PCs connected to the LAN, and finds that 9 are infected; use proportion to estimate the number of infected PCs if there are a total of 202 PCs connected to the LAN.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #125546 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=125546\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This was already solved, I copied it fro Stan H, or stanbon.<BR>\n" );
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document.write( "Use a proportion:<BR>\n" );
document.write( "[9 infected/15 sampled] = [x infected/all the PCs] <BR>\n" );
document.write( "(9/15) = (x/202)<BR>\n" );
document.write( "x = 202(9/15) <BR>\n" );
document.write( "x = 202(3/5)<BR>\n" );
document.write( "x = 121.2<BR>\n" );
document.write( "Round down to get x = 121 infected PC's out of 202 </SPAN>\n" );
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