document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=358715>Question 358715</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how much of a 50% acid solution must be mixed with 30 gallons of a 19% acid solution to obtain 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 #256007 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=256007\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .50X+.19*30=.40(30+X)<BR>\n" );
document.write( ".50X+5.7=12+.40X<BR>\n" );
document.write( ".50X-.40X=12-5.7<BR>\n" );
document.write( ".10X=6.3<BR>\n" );
document.write( "X=6.3/.10<BR>\n" );
document.write( "X=63 GALLONS OF 50% ACID SOLUTION IS USED.<BR>\n" );
document.write( "PROOF:<BR>\n" );
document.write( ".50*63+.19*30=.40(30+63)<BR>\n" );
document.write( "31.5+5.7=.40*93<BR>\n" );
document.write( "37.2=37.2\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );