document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=779949>Question 779949</A>: <I><SPAN STYLE=\"word-break: break-all;\"> To make low-fat cottage cheese, milk containing 4% butterfat is mixed with milk containing 1% butterfat to obtain 36 gallons of a mixture containing 2% butterfat. How many gallons of each milk must be used? See Example 4.<BR>\n" );
document.write( "1% milk   ___   gal<BR>\n" );
document.write( "4% milk   ___    gal<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #475445 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</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=475445\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> ASSIGN VARIABLES<BR>\n" );
document.write( "L = 1%<BR>\n" );
document.write( "T = 2%, target value wanted<BR>\n" );
document.write( "H = 4%<BR>\n" );
document.write( "M = 36 gallons<BR>\n" );
document.write( "u = amount of 1%, unknown<BR>\n" );
document.write( "v = amount of 4%, unknown\r<BR>\n" );
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document.write( "MAKE 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;\" >\r<BR>\n" );
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document.write( "SOLVE EQUATIONS FOR EACH UNKNOWN VARIABLE<BR>\n" );
document.write( "Meaning, solve for u and v.<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( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Lu%2BHv=MT ALIGN=MIDDLE  ALT=\"Lu%2BHv=MT\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=v=M-u ALIGN=MIDDLE  ALT=\"v=M-u\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Lu%2BH%28M-u%29=MT ALIGN=MIDDLE  ALT=\"Lu%2BH%28M-u%29=MT\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Lu%2BHM-Hu=MT ALIGN=MIDDLE  ALT=\"Lu%2BHM-Hu=MT\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Lu-Hu=MT-HM ALIGN=MIDDLE  ALT=\"Lu-Hu=MT-HM\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=u%28L-H%29=M%28T-H%29 ALIGN=MIDDLE  ALT=\"u%28L-H%29=M%28T-H%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=u=M%28T-H%29%2F%28L-H%29 ALIGN=MIDDLE  ALT=\"u=M%28T-H%29%2F%28L-H%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and because <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=L%3CT%3CH ALIGN=MIDDLE  ALT=\"L%3CT%3CH\"   DISABLED_style= \"max-width:90%; height:auto;\" >, we multiply top & bottom by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-1 ALIGN=MIDDLE  ALT=\"-1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28u=M%28H-T%29%2F%28H-L%29%29 ALIGN=MIDDLE  ALT=\"highlight%28u=M%28H-T%29%2F%28H-L%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and including the use of the other equation,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28v=M%281-%28H-T%29%2F%28H-L%29%29%29 ALIGN=MIDDLE  ALT=\"highlight%28v=M%281-%28H-T%29%2F%28H-L%29%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > or whichever simpler form you want.\r<BR>\n" );
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document.write( "SUBSTITUTE THE KNOWN VALUES </SPAN>\n" );
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