document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1162792>Question 1162792</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Suppose that z varies jointly with x and y.\r<BR>\n" );
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document.write( "Find the constant of proportionality k if z = 1376 when y = 20 and x = 16.<BR>\n" );
document.write( "k = \r<BR>\n" );
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document.write( "Using the k from above write the variation equation in terms of x and y.<BR>\n" );
document.write( "z = \r<BR>\n" );
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document.write( "Using the k from above find z given that y = 30 and x = 37.<BR>\n" );
document.write( "z = <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 #786641 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39630)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=786641\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> -------------------------------------------------------------<BR>\n" );
document.write( "z varies jointly with x and y.<BR>\n" );
document.write( "Find the constant of proportionality k if z = 1376 when y = 20 and x = 16.<BR>\n" );
document.write( "--------------------------------------------------------------\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z=kxy ALIGN=MIDDLE  ALT=\"z=kxy\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "-\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=k=z%2F%28xy%29 ALIGN=MIDDLE  ALT=\"k=z%2F%28xy%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=k=1376%2F%2816%2A20%29 ALIGN=MIDDLE  ALT=\"k=1376%2F%2816%2A20%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "etcetera,.... </SPAN>\n" );
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