document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=339805>Question 339805</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a sterilization tank contains 120 gallons of a solution of 6% bleach mixed with pure distilled water. for complete sterilization, the solution only needs to be at 4%. how much of the solution needs to be drained and replaced with water to reduce the concentration of bleach.\r<BR>\n" );
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document.write( "note:: u want to still have 120 gallons of solution when you are finished diluting. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #243432 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=243432\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> sterilization tank contains 120 gallons of a solution of 6% bleach <BR>\n" );
document.write( "mixed with pure distilled water. <BR>\n" );
document.write( "needs to be at 4%. <BR>\n" );
document.write( "..<BR>\n" );
document.write( "let water required be x  0%<BR>\n" );
document.write( "120-x gallons 6%<BR>\n" );
document.write( "Mix 120 gallons 4%<BR>\n" );
document.write( "...<BR>\n" );
document.write( "0+0.06(120-x)=120*0.04<BR>\n" );
document.write( "7.20-0.06x=4.80<BR>\n" );
document.write( "7.20-4.80 = 0.06x<BR>\n" );
document.write( "2.4 = 0.06x<BR>\n" );
document.write( "x=40 liters </SPAN>\n" );
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