document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=820426>Question 820426</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Suppose a chemist combines a 25% acid solution and a 50% acid solution to make 40 l of 45% acid solution. How many liters of each solution did she use? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #493532 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=493532\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Suppose a chemist combines a 25% acid solution and a 50% acid solution to make 40 l of 45% acid solution. How many liters of each solution did she use?<BR>\n" );
document.write( "------<BR>\n" );
document.write( "acid + acid = acid<BR>\n" );
document.write( "----------------------<BR>\n" );
document.write( "0.25x + 0.50(40-x) = 0.45*40<BR>\n" );
document.write( "------------------------<BR>\n" );
document.write( "25x + 50*40 - 50x = 45*40<BR>\n" );
document.write( "-25x = -5*40<BR>\n" );
document.write( "x = (1/5)40<BR>\n" );
document.write( "x = 8 liters (amt of 25% solution needed)<BR>\n" );
document.write( "40-x = 32 liters (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" );