document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=542354>Question 542354</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A quality control inspector examined 200 light bulbs and found 18 defective.At this rate,how many defective bulbs would there be in a lot 22000 bulbs? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #354526 by </B><A HREF=/tutors/aboutme.mpl?userid=neatmath><B>neatmath(302)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=neatmath><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=neatmath><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=354526\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><font face=\"Tahoma\">You can set up a proportion to solve this problem:<br>\r<BR>\n" );
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document.write( "18 is to 200 as x is to 22000?<br>\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=18%2F200=x%2F22000 ALIGN=MIDDLE  ALT=\"18%2F200=x%2F22000\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br>\r<BR>\n" );
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document.write( "Then cross multiply to solve:<br>\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=22000%2A18=200%2Ax ALIGN=MIDDLE  ALT=\"22000%2A18=200%2Ax\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br>\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=396000=200x ALIGN=MIDDLE  ALT=\"396000=200x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br>\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=1980 ALIGN=MIDDLE  ALT=\"x=1980\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br>\r<BR>\n" );
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document.write( "So we would \"expect\" to find 1980 defective lightbulbs in a lot of 22000 bulbs.<br>\r<BR>\n" );
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document.write( "If this type of problem interests you,<br>\r<BR>\n" );
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document.write( "there is a whole field of study about this type of situation called Statistical Quality Control.<br>\r<BR>\n" );
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document.write( "I hope this helps!<br> </SPAN>\n" );
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