document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=717636>Question 717636</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How much pure alcohol has to be added to 150 gallons of a 32% alcohol solution in order to bring the alcohol concentration up to 40%? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #440486 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=440486\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How much pure alcohol has to be added to 150 gallons of a 32% alcohol solution in order to bring the alcohol concentration up to 40%?<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Let a = amt of pure alcohol required to accomplish this<BR>\n" );
document.write( ":<BR>\n" );
document.write( ".32(150) + a = .40(a+150)<BR>\n" );
document.write( "48 + a = .4a + 60<BR>\n" );
document.write( "a - .4a = 60 - 48<BR>\n" );
document.write( ".6a = 12<BR>\n" );
document.write( "a = 12/.6<BR>\n" );
document.write( "a = 20 gallons of pure pure alcohol required<BR>\n" );
document.write( ";<BR>\n" );
document.write( ":<BR>\n" );
document.write( "see if that checks out<BR>\n" );
document.write( "48 + 20 = .4(170)<BR>\n" );
document.write( "68 = 68, confirms our solution of 20 gal of pure alcohol </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );