document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=730666>Question 730666</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many pounds of pure alcohol must be added to 20 pounds of an 80% pure alcohol to produce an 85% pure alcohol?\r<BR>\n" );
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document.write( "0.80(20) = 0.85 (20 + x)\r<BR>\n" );
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document.write( "(100)0.80(20) = (100)0.85 (20 + x)\r<BR>\n" );
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document.write( "80(20) = 85(20+x)\r<BR>\n" );
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document.write( "1600 = 1700 + 85x\r<BR>\n" );
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document.write( "1600 - 1700 = 1700 + 85x - 1700\r<BR>\n" );
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document.write( "-100 = 85x\r<BR>\n" );
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document.write( "-100/85 = 85x/85\r<BR>\n" );
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document.write( "-1.18 = x\r<BR>\n" );
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document.write( "The answer in the book is 6.66lbs.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #446795 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=446795\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.8%2A20+=+16+ ALIGN=MIDDLE  ALT=\"+.8%2A20+=+16+\"   DISABLED_style= \"max-width:90%; height:auto;\" > pounds of alcohol originally in solution<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+ ALIGN=MIDDLE  ALT=\"+x+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = pounds of alcohol to be added<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28+x+%2B+16+%29+%2F+%28+x+%2B+20+%29+=+.85+ ALIGN=MIDDLE  ALT=\"+%28+x+%2B+16+%29+%2F+%28+x+%2B+20+%29+=+.85+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+%2B+16+=+85%2A%28+x+%2B+20+%29%0D%0A%7B%7B%7B+x+%2B+16+=+.85x+%2B+17+ ALIGN=MIDDLE  ALT=\"+x+%2B+16+=+85%2A%28+x+%2B+20+%29%0D%0A%7B%7B%7B+x+%2B+16+=+.85x+%2B+17+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.15x+=+1+ ALIGN=MIDDLE  ALT=\"+.15x+=+1+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+=+6.667+ ALIGN=MIDDLE  ALT=\"+x+=+6.667+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "6.66 pounds of alcohol need to be added<BR>\n" );
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