document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=147757>Question 147757</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how many gallons of a 12% solution must be mixed with 6 gallons of  a 20% salt solution to obtain a 15% salt solution? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #108150 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=108150\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> how many gallons of a 12% solution must be mixed with 6 gallons of  a 20% salt solution to obtain a 15% salt solution?<BR>\n" );
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document.write( "EQUATION:<BR>\n" );
document.write( "salt + salt = salt<BR>\n" );
document.write( "0.12x + 0.20*6 = 0.15(x+6)<BR>\n" );
document.write( "Multiply thru by 100 to get rid of the decimals<BR>\n" );
document.write( "12x + 120 = 15x + 90<BR>\n" );
document.write( "3x = 30<BR>\n" );
document.write( "x = 10 gallons (amount of 12% solution needed for the mixture)<BR>\n" );
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