document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=932528>Question 932528</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many gallons of pure water should be evaporated from 160 gallons of a solution containing 12% salt so that the remaining solution contains 20% salt? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #566277 by </B><A HREF=/tutors/aboutme.mpl?userid=ptaylor><B>ptaylor(2198)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ptaylor><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=ptaylor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=566277\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How many gallons of pure water should be evaporated from 160 gallons of a solution containing 12% salt so that the remaining solution contains 20% salt?<BR>\n" );
document.write( "Let x=amount of pure water that needs to be evaporated<BR>\n" );
document.write( "Now we know that the amount of salt that exists before the evaporation takes place (0.12)(160) has to equal the amount of salt that exists after the evaporation takes place (0.20)(160-x). Sooooo<BR>\n" );
document.write( "(0.12)(160)=(0.20)(160-x) simplify<BR>\n" );
document.write( "19.2=32-0.20x<BR>\n" );
document.write( "0.20x=12.8<BR>\n" );
document.write( "x=64 gal----amount of pure water that needs to be evaporated\r<BR>\n" );
document.write( "\n" );
document.write( "CK<BR>\n" );
document.write( "(0.12)(160)=(0.20)(96)<BR>\n" );
document.write( "19.2=19.2\r<BR>\n" );
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document.write( "Hope this helps--ptaylor </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );