document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=531536>Question 531536</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Ink remover:  Etch Clean Graphics uses one cleanser that is 25% acid and a second that is 50% acid. How many liters of each should be mixed to get 30 L of a solution that is 40% acid?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #350479 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=350479\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Ink remover: Etch Clean Graphics uses one cleanser that is 25% acid and a second that is 50% acid. How many liters of each should be mixed to get 30 L of a solution that is 40% acid? <BR>\n" );
document.write( "------<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "acid + acid = acid<BR>\n" );
document.write( "0.25x + 0.50(30-x) = 0.4*30<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "Multiply thru by 100 to get:<BR>\n" );
document.write( "25x + 50*30 - 50x = 40*30<BR>\n" );
document.write( "-25x = -10*30<BR>\n" );
document.write( "x = (2/5)30<BR>\n" );
document.write( "---<BR>\n" );
document.write( "x = 12 L (amt. of 25% solution needed)<BR>\n" );
document.write( "30 - x = 18 L (amt. of 50% solution needed)<BR>\n" );
document.write( "=============================================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "===================== </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );