document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1043926>Question 1043926</A>: <I><SPAN STYLE=\"word-break: break-all;\"> joan has one solution that is 18% acid and<BR>\n" );
document.write( "second solution that is 43% acid.How many<BR>\n" );
document.write( "liters should she mix together in order to get<BR>\n" );
document.write( "an 80 liters solution that is 26.5% acid </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #659136 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=659136\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+a+ ALIGN=MIDDLE  ALT=\"+a+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = liters of 18% solution needed<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+b+ ALIGN=MIDDLE  ALT=\"+b+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = liters of 43% solution needed<BR>\n" );
document.write( "-----------------------------------<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.18a+ ALIGN=MIDDLE  ALT=\"+.18a+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = liters of acid in 18% solution<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.43b+ ALIGN=MIDDLE  ALT=\"+.43b+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = liters of acid in 43% solution<BR>\n" );
document.write( "-----------------------------------<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+a+%2B+b+=+80+ ALIGN=MIDDLE  ALT=\"+a+%2B+b+=+80+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28+.18a+%2B+.43b+%29+%2F+80+=+.265+ ALIGN=MIDDLE  ALT=\"+%28+.18a+%2B+.43b+%29+%2F+80+=+.265+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "-----------------------------------<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.18a+%2B+.43b+=+.265%2A80+ ALIGN=MIDDLE  ALT=\"+.18a+%2B+.43b+=+.265%2A80+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.18a+%2B+.43b+=+21.2+ ALIGN=MIDDLE  ALT=\"+.18a+%2B+.43b+=+21.2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+18a+%2B+43b+=+2120+ ALIGN=MIDDLE  ALT=\"+18a+%2B+43b+=+2120+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "---------------------------<BR>\n" );
document.write( "Multiply both sides of (1) by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+18+ ALIGN=MIDDLE  ALT=\"+18+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and subtract (1) from (2)<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+18a+%2B+43b+=+2120+ ALIGN=MIDDLE  ALT=\"+18a+%2B+43b+=+2120+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+-18a+-+18b+=+-1440+ ALIGN=MIDDLE  ALT=\"+-18a+-+18b+=+-1440+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "--------------------------<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+25b+=+680+ ALIGN=MIDDLE  ALT=\"+25b+=+680+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+b+=+27.2+ ALIGN=MIDDLE  ALT=\"+b+=+27.2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+a+%2B+27.2+=+80+ ALIGN=MIDDLE  ALT=\"+a+%2B+27.2+=+80+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+a+=+52.8+ ALIGN=MIDDLE  ALT=\"+a+=+52.8+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "----------------------<BR>\n" );
document.write( "52.8 liters of 18% solution are needed<BR>\n" );
document.write( "27.2 liters of 43% solution are needed<BR>\n" );
document.write( "--------------------------------<BR>\n" );
document.write( "check answer:<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28+.18a+%2B+.43b+%29+%2F+80+=+.265+ ALIGN=MIDDLE  ALT=\"+%28+.18a+%2B+.43b+%29+%2F+80+=+.265+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28+.18%2A52.8+%2B+.43%2A27.2+%29+%2F+80+=+.265+ ALIGN=MIDDLE  ALT=\"+%28+.18%2A52.8+%2B+.43%2A27.2+%29+%2F+80+=+.265+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28+9.504+%2B+11.696+%29+%2F+80+=+.265+ ALIGN=MIDDLE  ALT=\"+%28+9.504+%2B+11.696+%29+%2F+80+=+.265+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+21.2%2F80+=+.265+ ALIGN=MIDDLE  ALT=\"+21.2%2F80+=+.265+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+21.2+=+.265%2A80+ ALIGN=MIDDLE  ALT=\"+21.2+=+.265%2A80+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+21.2+=+21.2+ ALIGN=MIDDLE  ALT=\"+21.2+=+21.2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "OK </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );