document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1057725>Question 1057725</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A 10% acid solution is to be mixed with a 50% acid solution in order to get 120oz of 20% acid solution. How much of each solution should 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 #672735 by </B><A HREF=/tutors/aboutme.mpl?userid=addingup><B>addingup(3677)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=addingup><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=addingup><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=672735\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let the amount of 10% acid solution be x.<BR>\n" );
document.write( "Then, the amount at 50% will be 120-x<BR>\n" );
document.write( "0.10x+0.50(120-x) = 0.2(120)<BR>\n" );
document.write( "0.1x+60-0.5x = 24<BR>\n" );
document.write( "-0.4x = -36<BR>\n" );
document.write( "x = -36/-0.4 divide, remember that -/- = +<BR>\n" );
document.write( "x = 90 You need 90 ounces of the 10% solution and 120-90 = 30oz at 50%.<BR>\n" );
document.write( "---------------------------------<BR>\n" );
document.write( "check:<BR>\n" );
document.write( ".1*90+.5*30 = 24 Correct </SPAN>\n" );
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