document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=287930>Question 287930</A>: <I><SPAN STYLE=\"word-break: break-all;\"> You have 2 drums of milk, one contains 16% butterfat, the other contains 48% butterfat. You need 40 gallons of milk at 30% butterfat. How many gallons of each do you have to mix?<BR>\n" );
document.write( "Thank you for your time.<BR>\n" );
document.write( "Regards,<BR>\n" );
document.write( "Beth </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #208649 by </B><A HREF=/tutors/aboutme.mpl?userid=Grinnell><B>Grinnell(63)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Grinnell><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=208649\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x be number of gallons at 16%<BR>\n" );
document.write( "let 40-x be number of gallons at 48%<BR>\n" );
document.write( "You want to end up with 40 gallons at 30%\r<BR>\n" );
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document.write( "Sooo, off to the races!<BR>\n" );
document.write( "x(.16) + (40-x)(.48)=40(.30)<BR>\n" );
document.write( "(let's multiply by 100 to remove the decimal)<BR>\n" );
document.write( "16x+48(40-x)=(40)30<BR>\n" );
document.write( "16x+1920-48x=1200 (do the math)<BR>\n" );
document.write( "16x+1920-48x=1200<BR>\n" );
document.write( "-32x=-720<BR>\n" );
document.write( "x=-720/-32<BR>\n" );
document.write( "x=22.5                (I said 720/32=27.5---I caught my simple dividing mistake because I always double <BR>\n" );
document.write( "                                 check.)<BR>\n" );
document.write( "Sooo 22.5 gallons of 16% butterfat and<BR>\n" );
document.write( "          17.5 gallons of 48% butterfat must be mixed to yield 40 gallons of 30% butterfat! I have to run.       Always check your work. Plug in the numbers and see if they work!!!! Later...(I divided wrong at first--I said 4-4=1 (DUuu)---This threw the whole answer off! I caught my mistake because I  re-checked AND double checked. Be careful in the simple arithmetic. WE ALL MAKE MISTAKES!!!!!!! <BR>\n" );
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