document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=218873>Question 218873</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A certain solution of salt water is 15% salt and weighs 35 pounds. How much salt must be added to produce a solution that is 25% salt? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #164744 by </B><A HREF=/tutors/aboutme.mpl?userid=rapaljer><B>rapaljer(4671)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rapaljer><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=rapaljer><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=164744\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x = number of pounds of pure salt that must be added.<BR>\n" );
document.write( "35 = number of pounds of solution at the beginning<BR>\n" );
document.write( ".15*35 = number of pounds of salt at the beginning<BR>\n" );
document.write( "x+35 = total number of pounds of solution at the end<BR>\n" );
document.write( ".25(x+35) = total number of pounds of salt at the end\r<BR>\n" );
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document.write( "The equation is based upon the fact that the amount of salt in the solution + the amount of salt added = total amount of salt in the solution.\r<BR>\n" );
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document.write( ".15(35) + 1.00*x = .25(x+35)\r<BR>\n" );
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document.write( "5.25+ 1.00x = .25x + 8.75\r<BR>\n" );
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document.write( "Subtract .25x from each side:<BR>\n" );
document.write( "5.25 +.75x = 8.75\r<BR>\n" );
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document.write( "Subtract 5.25 from each side:<BR>\n" );
document.write( ".75x = 8.75-5.25=3.50\r<BR>\n" );
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document.write( "Divide both sides by .75:<BR>\n" );
document.write( "x= 3.50/.75<BR>\n" );
document.write( "x= 350/75= 14/3 = 4 2/3 = 4.66666. . . pounds of salt\r<BR>\n" );
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document.write( "I know this is an ugly answer, and the check is even uglier!  I did check this, and it seems to work, although I will spare the details!!\r<BR>\n" );
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document.write( "For additional explanation on this topic, please go to my website.  Do a \"Bing\" search for my last name \"Rapalje\".  Look for \"Rapalje Homepage\" at the top of this search.  Look near the top of my Homepage for \"Basic, Intermediate and College Algebra: One Step at a Time\", click on \"Intermediate Algebra\" and look in Chapter 1 for Section 1.05  Applications.\r<BR>\n" );
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document.write( "R^2\r<BR>\n" );
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document.write( "Dr. Robert J. Rapalje, Retired<BR>\n" );
document.write( "Seminole State College of Florida<BR>\n" );
document.write( "Altamonte Springs Campus </SPAN>\n" );
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