document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=270821>Question 270821</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how many liters of at 10% solution must be mixed with a 50% acid solution in order to obtain 30 liters of a 30% solution? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #198313 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=198313\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> how many liters of at 10% solution must be mixed with a 50% acid solution in order to obtain 30 liters of a 30% solution?<BR>\n" );
document.write( "-----------<BR>\n" );
document.write( "One variable solution:<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "active + active = active<BR>\n" );
document.write( "0.10x + 0.50(30-x) = 0.30*30<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Multiply thru by 100 to get:<BR>\n" );
document.write( "10x + 50*30 - 50x = 30*30<BR>\n" );
document.write( "---<BR>\n" );
document.write( "-40x = -20*30<BR>\n" );
document.write( "x = 15 liters (amt. of 10% solution needed in the mixture)<BR>\n" );
document.write( "50-15 = 35 liters (amt. of 50% solution needed in the mixture)\r<BR>\n" );
document.write( "\n" );
document.write( "--------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );