document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=908013>Question 908013</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Deon has 12ml of a 5% solution that has a concentration of 30%.  How many ml of 30% solution does he need to add to the 5% solution to make a 20% solution? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #550770 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=550770\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> We have 12 mL of 5% solution<BR>\n" );
document.write( "We want to add some 30% solution  to make   20% solution<BR>\n" );
document.write( "0.3*x+0.05*12=0.2(12+x)<BR>\n" );
document.write( "0.3*x+0.6=2.4+0.2x<BR>\n" );
document.write( "0.3x-0.2x=2.4-0.6<BR>\n" );
document.write( "0.1x=1.8<BR>\n" );
document.write( "x=18 mL at 30% (5.4) is added to 12 mL at 5%(0.6) to make 20% of 30 mL(6)<BR>\n" );
document.write( "check<BR>\n" );
document.write( "0.3*18+0.05*12=0.2(12+18)<BR>\n" );
document.write( "5.4+0.6=0.2(30)<BR>\n" );
document.write( "6=6<BR>\n" );
document.write( "ok<BR>\n" );
document.write( "also see <BR>\n" );
document.write( "http://www.algebra.com/algebra/homework/word/misc/Miscellaneous_Word_Problems.faq.question.568749.html<BR>\n" );
document.write( "with one right answer and one wrong. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );