document.write( "Question 55313: 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 12 of the PCs connected to the LAN, and finds that 7 are infected; use proportion to estimate the number of infected PCs if there are a total of 117 PCs connected to the LAN. \n" ); document.write( "
Algebra.Com's Answer #37537 by stanbon(75887)\"\" \"About 
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Let \"x\" be the number infected out of 117; then
\n" ); document.write( "x/117 = 7/12
\n" ); document.write( "x = 117(7/12)
\n" ); document.write( "x= 68.25
\n" ); document.write( "Approximately 68 out of the 117 are infected.
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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