document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1054026>Question 1054026</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A coffee distributor needs to mix a(n) Queen City coffee blend that normally sells for $9.10 per pound with a Organic Free Trade coffee blend that normally sells for $13.70 per pound to create 70 pounds of a coffee that can sell for $13.57 per pound. How many pounds of each kind of coffee should they mix? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #669258 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=669258\">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;\" > = pounds of $9.10/lb coffee 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;\" > = pounds of $13.70/lb coffee needed<BR>\n" );
document.write( "--------------------------------------------<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+a+%2B+b+=+70+ ALIGN=MIDDLE  ALT=\"+a+%2B+b+=+70+\"   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+9.1a+%2B+13.7b+%29+%2F+70+=+13.57+ ALIGN=MIDDLE  ALT=\"+%28+9.1a+%2B+13.7b+%29+%2F+70+=+13.57+\"   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=+9.1a+%2B+13.7b+=+13.57%2A70+ ALIGN=MIDDLE  ALT=\"+9.1a+%2B+13.7b+=+13.57%2A70+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+9.1a+%2B+13.7b+=+949.9+ ALIGN=MIDDLE  ALT=\"+9.1a+%2B+13.7b+=+949.9+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+91a+%2B+137b+=+9499+ ALIGN=MIDDLE  ALT=\"+91a+%2B+137b+=+9499+\"   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=+91+ ALIGN=MIDDLE  ALT=\"+91+\"   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=+91a+%2B+137b+=+9499+ ALIGN=MIDDLE  ALT=\"+91a+%2B+137b+=+9499+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+-91a+-+91b+=+-6370+ ALIGN=MIDDLE  ALT=\"+-91a+-+91b+=+-6370+\"   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=+46b+=+3129+ ALIGN=MIDDLE  ALT=\"+46b+=+3129+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+b+=+68.022+ ALIGN=MIDDLE  ALT=\"+b+=+68.022+\"   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+b+=+70+ ALIGN=MIDDLE  ALT=\"+a+%2B+b+=+70+\"   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+%2B+68.022+=+70+ ALIGN=MIDDLE  ALT=\"+a+%2B+68.022+=+70+\"   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+=+1.978+ ALIGN=MIDDLE  ALT=\"+a+=+1.978+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "-------------------------<BR>\n" );
document.write( "They need 1.978 pounds of Queen City Coffee<BR>\n" );
document.write( "They need 68.022 pounds of Organic Free Trade Coffee<BR>\n" );
document.write( "-------------------------<BR>\n" );
document.write( "check:<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28+9.1a+%2B+13.7b+%29+%2F+70+=+13.57+ ALIGN=MIDDLE  ALT=\"+%28+9.1a+%2B+13.7b+%29+%2F+70+=+13.57+\"   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+9.1%2A1.978+%2B+13.7%2A68.022+%29+%2F+70+=+13.57+ ALIGN=MIDDLE  ALT=\"+%28+9.1%2A1.978+%2B+13.7%2A68.022+%29+%2F+70+=+13.57+\"   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+%2B+931.9+%29+%2F+70+=+13.57+ ALIGN=MIDDLE  ALT=\"+%28+18+%2B+931.9+%29+%2F+70+=+13.57+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+949.9+%2F+70+=+13.57+ ALIGN=MIDDLE  ALT=\"+949.9+%2F+70+=+13.57+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+949.9+=+949.9+ ALIGN=MIDDLE  ALT=\"+949.9+=+949.9+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "OK<BR>\n" );
document.write( "Hope I got it </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );