document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=4160>Question 4160</A>: <I><SPAN STYLE=\"word-break: break-all;\"> x varies directly as the square of s and inversely as t.  How does x change when s is doubled?  When both s and t are doubled? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #1847 by </B><A HREF=/tutors/aboutme.mpl?userid=Earlsdon><B>Earlsdon(6294)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Earlsdon><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=1847\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You can write this variation as:  x = ks^2/t  (k is the proportionality constant)<BR>\n" );
document.write( "Now if you double s (2s), you'll have:<BR>\n" );
document.write( " x = k(2s)^2/t = 4ks^2/t or exactly 4 times as much.\r<BR>\n" );
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document.write( "If you double both s (2s) and t (2t), you'll have:<BR>\n" );
document.write( " x = k(2s)^2/2t = 4ks^2/2t = 2ks^2/t or exactly twice as much.\r<BR>\n" );
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document.write( "So, when s is doubled, x is quadrupled.<BR>\n" );
document.write( "and when both s and t are doubled, x is doubled. </SPAN>\n" );
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