document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=608819>Question 608819</A>: <I><SPAN STYLE=\"word-break: break-all;\"> You have 2 mixtures of a saline solution that are 12% by volume, and 20% by volume.  You need 6 gallons of a solution that is 18% by volume for an experiment.  How much of the 12% and the 20% solutions should you mix together? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #383391 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=383391\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solution I --12%---x gal<BR>\n" );
document.write( "Solution II--20%---(6-x)gal\r<BR>\n" );
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document.write( "Mixture total ---- 18% -----6 gal\r<BR>\n" );
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document.write( "12%*x+(6-x)*20%= 6*18%\r<BR>\n" );
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document.write( "multiply equation by 100\r<BR>\n" );
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document.write( "12x+(6-x)*20 = 108\r<BR>\n" );
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document.write( "12x+120-20x=108\r<BR>\n" );
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document.write( "12x-20x=108-120<BR>\n" );
document.write( "-8x=-12x<BR>\n" );
document.write( "/-8<BR>\n" );
document.write( "x=-12/8<BR>\n" );
document.write( "x=3/4 gallons  --- 6% solution\r<BR>\n" );
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document.write( "Balance of 6 gallons is 20% solution<BR>\n" );
document.write( "6-3/4<BR>\n" );
document.write( "= 5 1/4 gallons\r<BR>\n" );
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document.write( " </SPAN>\n" );
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