document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=625796>Question 625796</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A solution of 35% glycol is held in a 400 gallon tank. A 72% solution of glycol is held in a 190 gallon tank. How much of the two tanks must be added together to have a 200 gallon tank of 50% glycol? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #393794 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=393794\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A solution of 35% glycol is held in a 400 gallon tank. A 72% solution of glycol is held in a 190 gallon tank. How much of the two tanks must be added together to have a 200 gallon tank of 50% glycol?<BR>\n" );
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document.write( "Let x = amount (gallons) of 35%<BR>\n" );
document.write( "then<BR>\n" );
document.write( "200-x = amount (gallons) of 72%<BR>\n" );
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document.write( ".35x + .72(200-x) = .50(200)<BR>\n" );
document.write( ".35x + 144-.72x = 100<BR>\n" );
document.write( "144-.37x = 100<BR>\n" );
document.write( "-.37x = -44<BR>\n" );
document.write( "x = 118.9 gallons (35% solution)<BR>\n" );
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document.write( "72% solution:<BR>\n" );
document.write( "200-x = 200-118.9 =  81.1 gallons<BR>\n" );
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