Find the constant of variation for the relation and use it to write an equation for the statement.
y is a joint variation of x and z and varies inversely with w. When x = 3, z = 4, and w = 6, y is equal to 8.

Question

Find the constant of variation for the relation and use it to write an equation for the statement.
y is a joint variation of x and z and varies inversely with w.  When x = 3, z = 4, and w = 6, y is equal to 8.

anonymous · Answer

@SolomonZelman

solomonzelman · Answer

y=(k)xz         and    y=k/w       (where k is constant)

if I am understanding correctly.

solomonzelman · Answer

$\large\color{blue}{ \rm 8=k(3)(4) }$                  $\large\color{blue}{ \rm 8=k/6 }$    you get different `k` s  -:(

anonymous · Answer

thanks I think I get it now

solomonzelman · Answer

I think something is missing in the question.... the `k` s are supposed to be the same. Otherwise, why are these different variations, (joint var. and inv. variation) in a same question ? ... idk