document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=181588>Question 181588</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I was wondering if anyone could help me with a mixture\r<BR>\n" );
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document.write( "A chemist needs to prepare 12oz of a 9% hydrochloric acid solution. Find the amount of a 4% solution and the amount of a 12% solution she should mix to get this solution.\r<BR>\n" );
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document.write( "Thanks for the help </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #136174 by </B><A HREF=/tutors/aboutme.mpl?userid=solver91311><B>solver91311(24713)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=solver91311><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=solver91311><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=136174\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font face=\"Times New Roman\" size=\"+2\">\r<BR>\n" );
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document.write( "The total amount of solution has to be 12 ounces, so let the amount of 4% solution be <i>x</i> ounces and the amount of 12% solution be 12 - <i>x</i> ounces.\r<BR>\n" );
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document.write( "4% of the <i>x</i> ounces of 4% solution is pure acid.  12% of the 12 - <i>x</i> ounces of 12% solution is pure acid.  When you add these two together, you get something that is 9% times 12 ounces pure acid.  Symbolically,\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\Large \text {          }\math 0.04x + 0.12(12 - x) = 0.09*12\">\r<BR>\n" );
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document.write( "Solve for <i>x</i> to get the amount of 4% solution.  Subtract this result from 12 to get the amount of 12% solution.  Hint:  This will be much easier to avoid errors if you first multiply both sides of the equation by 100 to get rid of the decimal fractions.\r<BR>\n" );
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document.write( "John<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE e^{i\pi} + 1 = 0\"><BR>\n" );
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