document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1076393>Question 1076393</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a.)Suppose z varies jointly as y and  x. If z =105 when x=5 and y=7, what is z when x=12 and y=1?\r<BR>\n" );
document.write( "\n" );
document.write( "b.)Suppose y varies inversely with x and that y=15 when x=12. What is the value of y when x=3? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #691031 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</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=691031\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a.)Suppose z varies jointly as y and  x. If z =105 when x=5 and y=7, what is z when x=12 and y=1?<BR>\n" );
document.write( "-----------------------------------------------------------------------------\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z=k%2Axy ALIGN=MIDDLE  ALT=\"z=k%2Axy\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
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" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=k=105%2F%285%2A7%29 ALIGN=MIDDLE  ALT=\"k=105%2F%285%2A7%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=k=3 ALIGN=MIDDLE  ALT=\"k=3\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "MODEL:  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28z=3xy%29 ALIGN=MIDDLE  ALT=\"highlight_green%28z=3xy%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Substitute the next given values to answer the question. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );