document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1188078>Question 1188078</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Suppose f varies directly as the square of m, and inversely as j. Also, if f=36 when m=2 and j=10. Find f, if m=4 and j=6. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #819146 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=819146\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> f varies directly as the square of m and inversely as j.\r<BR>\n" );
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document.write( "if f = 36 when m = 2 and j = 10, find the value of f when m = 4 and j = 6.\r<BR>\n" );
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document.write( "the formula is f = k * m^2 / j.\r<BR>\n" );
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document.write( "when f = 36 and m = 2 and j = 10, the formula becomes:\r<BR>\n" );
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document.write( "36 = k * 2^2 / 10.\r<BR>\n" );
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document.write( "solve for k to get:\r<BR>\n" );
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document.write( "k = 36 * 10 / 2^2 = 90.\r<BR>\n" );
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document.write( "k is the constant of variation.<BR>\n" );
document.write( "it does not change it's value in the equation, while all the other variables can change their value.\r<BR>\n" );
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document.write( "when m = 4 and j = 6, the formula becomes:\r<BR>\n" );
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document.write( "f = k * m^2 / j becomes:\r<BR>\n" );
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document.write( "f = 90 * 4^2 / 6.\r<BR>\n" );
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document.write( "solve for f to get:\r<BR>\n" );
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document.write( "f = 240.\r<BR>\n" );
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document.write( "that's your solution.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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