document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=393544>Question 393544</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many pints of a 9% cleaning solution must be mixed with 4 pints of a 15% cleaning solution to give a 12% solution? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #279275 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=279275\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How many pints of a 9% cleaning solution must be mixed with 4 pints of a 15% cleaning solution to give a 12% solution?<BR>\n" );
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document.write( "Equations:<BR>\n" );
document.write( "active + active = active<BR>\n" );
document.write( "0.09x + 0.15*4 = 0.12(x+4)<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Multiply thru by 100 to get:<BR>\n" );
document.write( "9x + 15*4 = 12x + 12*4<BR>\n" );
document.write( "----<BR>\n" );
document.write( "-3x = -3*4<BR>\n" );
document.write( "x = 4 pints (amt of 9% solution needed in the mix)<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );