document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=308529>Question 308529</A>: <I><SPAN STYLE=\"word-break: break-all;\"> cream has approximately 22% of butterfat.how many gallons of cream must be mixed with 2% milk to give 20 gallons of milk containing 4% of butterfat </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #220608 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=220608\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> cream has approximately 22% of butterfat.how many gallons of cream must be mixed with 2% milk to give 20 gallons of milk containing 4% of butterfat\r<BR>\n" );
document.write( "\n" );
document.write( "cream 22% fat quantity x<BR>\n" );
document.write( "milk fat 2% quantity (20-x)\r<BR>\n" );
document.write( "\n" );
document.write( "Blend 4% quantity = 20\r<BR>\n" );
document.write( "\n" );
document.write( "concentration of cream fat + concentration of milk fat = concentration of butter fat\r<BR>\n" );
document.write( "\n" );
document.write( "0.22x +0.02(20-x) = 20*0.04\r<BR>\n" );
document.write( "\n" );
document.write( "0.22x + 0.4 -0.02x=0.8\r<BR>\n" );
document.write( "\n" );
document.write( "0.20x = 0.8 -0.4\r<BR>\n" );
document.write( "\n" );
document.write( "0.2x= 0.4<BR>\n" );
document.write( "x= 2  gallons of cream </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );