Question

URGENT: State whether each equation represents a direct, inverse, joint, or combined variation. State the constant of variation.

V = 5n
`(t)/(m)`

Answer 1

Combined

Explanation:

Explore the relationship between the general forms of variation :

Direct Variation :

x varies directly as y ; x = kx

Inverse Variation :

x varies inversely as y ; x = k/x

Joint : x varies jointly as y and Z ; x = kxz

combined :

x varies directly as y and inversely as z ; x = kx * 1/ ; x = kx/z

Where k is the proportionality constant.

In the equation given above :

We have a combination of joint and inverse variation : V = 5ng

V varies jointly as n and t and inversely as m

V α k * n * t * 1 / m

V = Knt /m

Where, k is proportionality constant.