document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=927816>Question 927816</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A chemist needs 18 L of a 10% alcohol solution but only has a 30% alcohol solution. How many liters each of the 30 solution and water should be mixed to make the desired 18 liters of a 10% solution? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #563280 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=563280\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A chemist needs 18 L of a 10% alcohol solution but only has a 30% alcohol solution. How many liters each of the 30 solution and water should be mixed to make the desired 18 liters of a 10% solution?<BR>\n" );
document.write( "--------------<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "water + water = water<BR>\n" );
document.write( "0.70x + 1*(18-x) = 0.90*18<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "70x + 100(18-x) = 90*18<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "70x + 100*18 - 100x = 90*18<BR>\n" );
document.write( "======<BR>\n" );
document.write( "-30x = -10*18<BR>\n" );
document.write( "x = 6 L (amt of 30% solution needed)<BR>\n" );
document.write( "18-x = 18-6 = 12 L (amt of water needed)<BR>\n" );
document.write( "----------------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "============= </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );