document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=189947>Question 189947</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I see similar questions, but not quite the same and am having problems:\r<BR>\n" );
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document.write( "How many ounces of a 30% gold solution must be mixed with 60 ounces of a 15% solution to obtain a solution that is 20% gold?\r<BR>\n" );
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document.write( "The teacher released the answer as 30oz. of the 10% solution....not sure how to get there </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #142519 by </B><A HREF=/tutors/aboutme.mpl?userid=ptaylor><B>ptaylor(2198)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ptaylor><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=ptaylor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=142519\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "Let x=amount of 30% solution needed\r<BR>\n" );
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document.write( "Amount of pure gold before the mixture(0.30x+0.15*60) has to equal the amount of pure gold after the mixture (0.20(60+x)), so\r<BR>\n" );
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document.write( "0.30x+0.15*60=0.20(60+x)  get rid of parens and simplify<BR>\n" );
document.write( "0.30x+9=12+0.20x  subtract 9 and also 0.20x feom each side<BR>\n" );
document.write( "0.30x-0.20x+9-9=0.20x-0.20x+12-9<BR>\n" );
document.write( "0.10x=3  divide each side by 0.10<BR>\n" );
document.write( "x=30 oz-------------------amount of 30% solution needed\r<BR>\n" );
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document.write( "CK<BR>\n" );
document.write( "0.30*30+0.15*60=0.20*90<BR>\n" );
document.write( "9+9=18<BR>\n" );
document.write( "18=18\r<BR>\n" );
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document.write( "Hope this helps---ptaylor </SPAN>\n" );
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