document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=159563>Question 159563</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An air sample 4.0 ppm (parts per million) of two pollutants. The concentration of one is four times the other. What are the concentrations? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #117672 by </B><A HREF=/tutors/aboutme.mpl?userid=KnightOwlTutor><B>KnightOwlTutor(293)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=KnightOwlTutor><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=KnightOwlTutor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=117672\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> X= concentration of pollutant #1\r<BR>\n" );
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document.write( "Y=concentration of pollutant #2=4X\r<BR>\n" );
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document.write( "X+Y=4.0<BR>\n" );
document.write( "X+4X=4.0<BR>\n" );
document.write( "5X=4.0<BR>\n" );
document.write( "X=.8<BR>\n" );
document.write( "Concentration of pollutant #1=0.8 ppm<BR>\n" );
document.write( "Concentration of pollutant #2=3.2 ppm\r<BR>\n" );
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document.write( "Plug into the original equation\r<BR>\n" );
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document.write( "0.8+3.2=4.0 PPM </SPAN>\n" );
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