document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=290422>Question 290422</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a chemist has 6 liters of a 50% acid solution. how much water must be added to obtain a 20% acid solution ? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #210160 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=210160\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a chemist has 6 liters of a 50% acid solution. how much water must be added to obtain a 20% acid solution ?<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "acid + acid = acid<BR>\n" );
document.write( "0.50*3 + 0*x = 0.20(3+x)<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Multiply thru by 100 to get:<BR>\n" );
document.write( "50*3 + 0 = 20*3 + 20x<BR>\n" );
document.write( "20x = 30*3<BR>\n" );
document.write( "x = (3/2)3<BR>\n" );
document.write( "x = 4.5 liters (amount of water needed for the mixture)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "============================================== </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );