document.write( "Question 1130524: (a) y varies jointly as x and w and inversely as the square of z. Find the equation of variation when y=100, x=2, w=4, and z=20.
\n" ); document.write( "(b) Then solve for y when x=1, w=5 and z=4.\r
\n" ); document.write( "\n" ); document.write( "Please show me how you get the answer, thanks.
\n" ); document.write( "

Algebra.Com's Answer #747172 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
---------
\n" ); document.write( "y varies jointly as x and w and inversely as the square of z.
\n" ); document.write( "---------\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "k, variation constant\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"y=kxw%2Fz%5E2\"\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "---------
\n" ); document.write( "Find the equation of variation when y=100, x=2, w=4, and z=20.
\n" ); document.write( "---------\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Simply substitute and solve for k.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Similar for (b). Substitute and solve.
\n" ); document.write( "
\n" );