document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=748331>Question 748331</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The Coffee Counter charges $9.00 per pound of Kenyan French Roast coffee and $11.00 per pound for Sumatran coffee.<BR>\n" );
document.write( "How much of each type should be used to make a 12 pound bag blend that sells for $10.00 per pound?<BR>\n" );
document.write( "The Coffee Counter should mix____ pounds of Kenyan Roast and _____ pounds of Sumatran coffee to make 12 pounds of the blen that sells for $10.00 per pound. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #455468 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=455468\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This is a mixture problem in which two items of two strengths are mixed giving a mixture of a certain expected strength, in this case, the strength being a price.\r<BR>\n" );
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document.write( "Assign variables to everything:<BR>\n" );
document.write( "L = 9 dollars/pound, the Kenyon roasted<BR>\n" );
document.write( "H = 11 dollars/pound, the Sumatran<BR>\n" );
document.write( "T = 10 dollars/pound, mixture price wanted<BR>\n" );
document.write( "u = pounds of Kenyan coffee<BR>\n" );
document.write( "v = pounds of Sumatra coffee<BR>\n" );
document.write( "M = 12 pounds, mixture wanted\r<BR>\n" );
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document.write( "Establish Equations:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28Lu%2BHv%29%2FM=T ALIGN=MIDDLE  ALT=\"%28Lu%2BHv%29%2FM=T\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=u%2Bv=M ALIGN=MIDDLE  ALT=\"u%2Bv=M\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The unknowns are u and v.  Solve the system for u and v.\r<BR>\n" );
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document.write( "Computations:<BR>\n" );
document.write( "Substitute the known given values to compute u and v. </SPAN>\n" );
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