document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=288736>Question 288736</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How much of a 10% saline solution should be mixed with a 20% saline solution to obtain 1000 milliters of a 12% saline solution?<BR>\n" );
document.write( "Use a system of equations and substitution to solve each problem.<BR>\n" );
document.write( "Thanks </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #209244 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=209244\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A single equation is a much simplier method.<BR>\n" );
document.write( ".20x+.10(1,000-x)=.12*1,000<BR>\n" );
document.write( ".20x+100-.10x=120<BR>\n" );
document.write( ".10x=120-100<BR>\n" );
document.write( ".10x=20<BR>\n" );
document.write( "x=20/.10<BR>\n" );
document.write( "x=$200 invested @ 20%.<BR>\n" );
document.write( "1,000-200=$800 invested @ 10%.<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( ".20*200+.10*800=.12*1,000<BR>\n" );
document.write( "40+80=120<BR>\n" );
document.write( "120=120 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );