document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=721125>Question 721125</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A 10% chlorine solution is to be mixed with a 25% chlorine solution<BR>\n" );
document.write( "to obtain 30 gallons of 20% solution. How many gallons of each must be used? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #442208 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=442208\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A 10% chlorine solution is to be mixed with a 25% chlorine solution<BR>\n" );
document.write( "to obtain 30 gallons of 20% solution. How many gallons of each must be used?<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "chlor + chlor = chlor<BR>\n" );
document.write( "0.10x + 0.25(30-x) = 0.20*30<BR>\n" );
document.write( "------<BR>\n" );
document.write( "10x + 25*30 - 25x = 20*30<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "-15x = -5*30<BR>\n" );
document.write( "x = 10 gallons (amt. of 10% solution needed)<BR>\n" );
document.write( "--------------<BR>\n" );
document.write( "30-x = 20 gallons (amt. of 25% solution 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" );