# If y varies inversely as the cube of x and directly as the square of z and y = -6 when x=3 and z =9, how do you find y when x =6 and z= -4?

##### 1 Answer

May 31, 2015

If y varies inversely as the cube of x and directly as the square of z

then we can write:

If

is a solution for this equation, then

When

becomes