document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=782462>Question 782462</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have to use elimination or substitution to solve this. I am able to do that if I can get it into two linear equations in two variables.\r<BR>\n" );
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document.write( "The problem is: A chemist has 15% and 40% solutions of acid available. How may liters of each solution should be mixed to obtain 5 liters of a 20% acid solution? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #476394 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=476394\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You need two variables.<BR>\n" );
document.write( "x = amount of 15% acid<BR>\n" );
document.write( "y = amount of 40% acid\r<BR>\n" );
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document.write( "One equation accounts for the concentrations of acid:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2815x%2B40y%29%2F5=20 ALIGN=MIDDLE  ALT=\"%2815x%2B40y%29%2F5=20\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "The other equation accounts for the quantities of the acid solutions:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2By=5 ALIGN=MIDDLE  ALT=\"x%2By=5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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