document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=906940>Question 906940</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many gallons of water that is 74% alcohol must be mixed with 5 gallons of one that is 90% alcohol in order to obtain a mixture that is 84% alcohol? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #550108 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=550108\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> We have 5 gal of 90% solution<BR>\n" );
document.write( "We want to add some  74%  solution to make 84% solution<BR>\n" );
document.write( "0.74*x+0.9*5=0.84(5+x)<BR>\n" );
document.write( "0.74*x+4.5=4.2+0.84x<BR>\n" );
document.write( "0.74x-0.84x=4.2-4.5<BR>\n" );
document.write( "-0.1x=-0.3<BR>\n" );
document.write( "x=3 gal at 74% (2.22) is added to 5 gal at 90%(4.5) to earn 84% of 8 gal(6.72)<BR>\n" );
document.write( "check<BR>\n" );
document.write( "0.74*3+0.9*5=0.84(5+3)<BR>\n" );
document.write( "2.22+4.5=0.84(8)<BR>\n" );
document.write( "6.72=6.72<BR>\n" );
document.write( "ok\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );