Question

If z varies inversely as w?, and z = 20 when w=6, find z when w=4.

Answer 1

`z = (5)/(6)`

Explanation:

`z` ∝
`(k)/(w)`

Where k is a constant we need to find when solving these questions.

`20 = (k)/(6)`

`k = (10)/(3)`

`z = (10/3)/(4)`

`z = (5)/(6)`