document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=98001>Question 98001</A>: <I><SPAN STYLE=\"word-break: break-all;\"> hey i didnt know where else to go with this....<BR>\n" );
document.write( "its asking me:<BR>\n" );
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document.write( "a person's weight on the surface of a planet is directly proportional to the mass of the planet and inversely proportional to the square of the radius of the planet.<BR>\n" );
document.write( "if a man weighs 180 pounds on earth, how much will he weigh on a planet that is 2 times as massive as earth and has 3 times the radius of earth?<BR>\n" );
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document.write( "im very confused by the directly and inversely proportional things and i've been trying to do this problem i just don't know where to get started...any help would be greatly appreciated : ) thanks<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #71335 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=71335\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> directly means as one thing gets larger, another thing also gets larger .. x=ky (where k is a constant)\r<BR>\n" );
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document.write( "inversely means as one thing gets larger, another thing gets smaller ... xy=k\r<BR>\n" );
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document.write( "let w=weight, if m is the mass and r is the radius; then w(r^2)=km ... w=km/(r^2)\r<BR>\n" );
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document.write( "when r=1 and m=1, w=180; so k=180 ... w=180(1)/(1^2)\r<BR>\n" );
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document.write( "when r=3 and m=2 ... w=180(2)/(3^2) ... w=40\r<BR>\n" );
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