document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=261911>Question 261911</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Perry wants to make a 80% alcohol solution. He has already poured 8 gallons of a 85% alcohol solution into a beaker. How many gallons of a 70% alcohol solution must be added to this to create the desired mix? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #193025 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=193025\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .85*8+.70x=.80(8+x)<BR>\n" );
document.write( "6.8+.7x=6.4+.8x<BR>\n" );
document.write( ".7x-.8x=6.4-6.8<BR>\n" );
document.write( "-.1x=-.4<BR>\n" );
document.write( "x=-.4/-.1<BR>\n" );
document.write( "x=4 gallons of 70% alcohol is used.<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( "85*8+.7*4=.8(8+4)<BR>\n" );
document.write( "6.8+2.8=.8*12<BR>\n" );
document.write( "9.6=9.6 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );