document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=905419>Question 905419</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 27 gallons of a mixture containing 2% butterfat.  How many gallons of each milk must be used? 1% and 4%<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 #549181 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=549181\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "a+b=27,<BR>\n" );
document.write( "0.04*a+0.01*b=0.02*27<BR>\n" );
document.write( "a=27-b<BR>\n" );
document.write( "0.04*(27-b)+0.01*b=0.54<BR>\n" );
document.write( "1.08-0.04b+0.01*b=0.54<BR>\n" );
document.write( "-0.03*b=-0.54<BR>\n" );
document.write( "b=18<BR>\n" );
document.write( "a=27-b<BR>\n" );
document.write( "a=9 gal at 0.04% b=18 gal at 0.01%<BR>\n" );
document.write( "check<BR>\n" );
document.write( "0.04*9+0.01*18=0.02*27<BR>\n" );
document.write( "0.36+0.18=0.54<BR>\n" );
document.write( "0.54=0.54<BR>\n" );
document.write( "ok<BR>\n" );
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