document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=722341>Question 722341</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many liters of 70% acid solution must be mixed with 10% acid solution to get 480 L of a 60% 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 #442721 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=442721\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  How many liters of 70% acid solution must be mixed with 10% acid solution to get 480 L of a 60% acid solution<BR>\n" );
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document.write( "Using 2 variables:<BR>\n" );
document.write( "Quantity Eq::: x + y = 480 L<BR>\n" );
document.write( "Acid Eq::::: 70x+10y = 60*480<BR>\n" );
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document.write( "Modify for elimination:<BR>\n" );
document.write( "70x + 70y = 70*480<BR>\n" );
document.write( "70x + 10y = 60*480<BR>\n" );
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document.write( "Subtract and solve for \"y\":<BR>\n" );
document.write( "60y = 10*480<BR>\n" );
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document.write( "y = 80 L (amt. of 10% solution needed)<BR>\n" );
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document.write( "x = 400 L (amt. of 70% solution needed)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "=========  </SPAN>\n" );
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