document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=161870>Question 161870</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Cindy's job is to check computer printers for defects.  Out of 420 printers she has to check, only 3 of the first 84 have been defective.  Using this information, what is the best prediction of the total number of printers in this group that will be defective?\r<BR>\n" );
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document.write( "I know that 420/84 is 5 and that 5x3=15, but how do you set up the problem? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #129764 by </B><A HREF=/tutors/aboutme.mpl?userid=actuary><B>actuary(112)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=actuary><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=129764\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  3 (defectives found)/ 84 (first printers checked) = total defective (x) / 420 (total number of printers). This is the equation that expresses the proportions  Therefore, x = (3*420)/84 (Solving for x)\r<BR>\n" );
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document.write( "x = 15 </SPAN>\n" );
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