# 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?

##### 1 Answer

#### Answer:

#### Explanation:

You have only referenced

The wording implies:

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Observe that

Thus

as

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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