document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=226639>Question 226639</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What quantity of 75 per cent acid solution must be mixed with a 30 percent solution to produce 1215 mL of a 50 per cent solution? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #168726 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=168726\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .75x+.30(1215-x)=.50*1215<BR>\n" );
document.write( ".75x+364.5-.30x=607.5<BR>\n" );
document.write( ".75x-.30x=607.5-364.5<BR>\n" );
document.write( ".45x=243<BR>\n" );
document.write( "x=243/.45<BR>\n" );
document.write( "x=540 ml of 75% acid.<BR>\n" );
document.write( "1215-540=675 ml of 30% acid.<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( ".75*540+.30*675=.50*1215<BR>\n" );
document.write( "405+202.5=607.5<BR>\n" );
document.write( "607.5=607.5\r<BR>\n" );
document.write( "\n" );
document.write( "  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );