document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=834596>Question 834596</A>: <I><SPAN STYLE=\"word-break: break-all;\"> You have 4L of an 90% aqueous solution of hydrochloric acid. You want 1L of a 25% solution. How much of the stock solution do you need to use? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #503092 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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/cgi-bin/show-face.mpl?user=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=503092\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> point of view of acid<BR>\n" );
document.write( ".9x=.25(x+y),<BR>\n" );
document.write( "x+y=1<BR>\n" );
document.write( "x=0.277778 acid ,   y=0.722222 water<BR>\n" );
document.write( "check<BR>\n" );
document.write( ".9(0.277778)=.25(1), <BR>\n" );
document.write( "ok\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "point of view of water<BR>\n" );
document.write( ".1(x)+y=.75*(x+y),<BR>\n" );
document.write( "x+y=1<BR>\n" );
document.write( "x=0.277778 acid ,   y=0.722222 water<BR>\n" );
document.write( "check<BR>\n" );
document.write( ".1(0.277778)+0.722222=.75*(1)<BR>\n" );
document.write( "ok </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );