document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1134024>Question 1134024</A>: <I><SPAN STYLE=\"word-break: break-all;\"> pls help me to answer: z is directly proportional to x and inversely to the square of y. what is the percent of z if x is increased by 20% and y is decreased by 40%? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #751317 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=751317\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> z is directly proportional to x and inversely to the square of y. what is the percent of z if x is increased by 20% and y is decreased by 40%?<BR>\n" );
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document.write( "z = k*x/y^2<BR>\n" );
document.write( "z2 = k*(1.2x)/(0.6y)^2 = z*(1.2/0.36) = 10z/3<BR>\n" );
document.write( "An increase of 7z/3 = 233.33...%<BR>\n" );
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