Suppose that y varies jointly with x and x inversely with z and y=540 when w=15, x=30, and z=5, how do you write the equation that models the relationship?
You have only referenced
The wording implies:
There are a number of equation structures that can link
Lets pick on the most strait forward.
So we have:
Notice that 3, 18, 27 and 36 are all exactly divisible by 3. Consequently 180, 270 and 360 are also exactly divisible by 3
Dividing all of both sides by 3