document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=389953>Question 389953</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Santa's fish tank contains 200 gallons of sea water. The sea water is 7.5% salt. How many gallons of fresh water must be added to the tank so that the mixture only contains 7% salt?\r<BR>\n" );
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document.write( "Please help! I'm bad at mixtures and setting them up. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #276448 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=276448\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Santa's fish tank contains 200 gallons of sea water. The sea water is 7.5% salt. How many gallons of fresh water must be added to the tank so that the mixture only contains 7% salt? <BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "salt + salt = salt<BR>\n" );
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document.write( "0.075*200 + 0*x = 0.07(200+x)<BR>\n" );
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document.write( "Multiply thru by 1000 to get:<BR>\n" );
document.write( "75*200 + 0 = 70*200 + 70x<BR>\n" );
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document.write( "70x = 5*200<BR>\n" );
document.write( "x = 14.29 gallons (amount of water that must be added)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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