document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=637157>Question 637157</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Calculate how much 20% alcohol solution and 60% alcohol solution must be mixed to end up with exactly 12 gallons of a 50% alcohol solution. You'll need ____ gallons of the 60% solution. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #401509 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=401509\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Calculate how much 20% alcohol solution and 60% alcohol solution must be mixed<BR>\n" );
document.write( " to end up with exactly 12 gallons of a 50% alcohol solution. <BR>\n" );
document.write( "You'll need ____ gallons of the 60% solution.<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Let x = amt of 60% solution required<BR>\n" );
document.write( "the total amt will be 12 gals, therefore:<BR>\n" );
document.write( "(12-x) = amt of 20% solution<BR>\n" );
document.write( ":<BR>\n" );
document.write( ".60x + .20(12-x) = .50(12)<BR>\n" );
document.write( ".60x + 2.4 - .20x = 6<BR>\n" );
document.write( ".60x - .20x = 6 - 2.4<BR>\n" );
document.write( ".40x = 3.6<BR>\n" );
document.write( "x = 3.6/.4<BR>\n" );
document.write( "x = 9 gal of 60% solution required<BR>\n" );
document.write( ":<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Check<BR>\n" );
document.write( ".6(9) + .2(3) = 6<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );