document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=366644>Question 366644</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many gallons of pure water must be added to 10 gallons of 30% saltwater to make a solution that is 25% saltwater?\"  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #261294 by </B><A HREF=/tutors/aboutme.mpl?userid=robertb><B>robertb(5830)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=robertb><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=robertb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=261294\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let x = # gallons pure water that must be added.  Then <BR>\n" );
document.write( "10*0.30 + x*0.00 = (10 + x)0.25,<BR>\n" );
document.write( "3  = 2.5 + 0.25x,<BR>\n" );
document.write( "0.5 = 0.25x<BR>\n" );
document.write( "x = 2 gallons of water must be added.\r<BR>\n" );
document.write( "\n" );
document.write( "***Note:  x*0.00  denotes the weight contribution of the water to the salt content of the newly mixed solution. x is in gallons, and its  salt concentration is 0.00 weight units per gallon, so that x*0.00 is in weight units.*** </SPAN>\n" );
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