document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=576777>Question 576777</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many gallons of hydrochloric acid must be added to 12 gallons of a 30% solution to obtain a 40% solution? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #369998 by </B><A HREF=/tutors/aboutme.mpl?userid=chana><B>chana(69)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=chana><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=chana><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=369998\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How many gallons of hydrochloric acid must be added to 12 gallons of a 30% solution to obtain a 40% solution?<BR>\n" );
document.write( "sol:<BR>\n" );
document.write( "x be the extra added solution <BR>\n" );
document.write( "30% of 12 gallons = 3.6 gall.<BR>\n" );
document.write( "so forming the equation :<BR>\n" );
document.write( "( 3.6 + x)/(12+x) = 40 / 100 <BR>\n" );
document.write( "solve for x you will get the required quantity which is 2 gallons </SPAN>\n" );
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