document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=528292>Question 528292</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many litres of 50% alcohal solution and 20% alcohal solution must be mixed to obtain 18 Liters of 30% alcohal solution?\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #349213 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=349213\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How many litres of 50% alcohol solution and 20% alcohol solution must be mixed to obtain 18 Liters of 30% alcohol solution?<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "active + active = active<BR>\n" );
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document.write( "0.50x + 0.20(18-x) = 0.30*18<BR>\n" );
document.write( "Multiply thru by 100 to get:<BR>\n" );
document.write( "50x + 20*18 - 20x = 30*18<BR>\n" );
document.write( "30x = 10*18<BR>\n" );
document.write( "x = 6 liters (amt. of 50% solution needed<BR>\n" );
document.write( "18-x = 12 liters (amt. of 20% solution needed.<BR>\n" );
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