Question

AAAH HELP! Assume that r varies directly as p. What is the constant of proportionality if r = 3 when p = 15. k = 1\5 k = 5 k = 3 k = 45

Answer 1

k = 1/5

Explanation:

Answer 2

k =
`(1)/(5)`

Explanation:

Given that r varies directly as p then the equation relating them is

r = kp ← k is the constant of variation

To find k use the condition r = 3 when p = 15, then

3 = 15k ( divide both sides by 15 )

`(3)/(15)` = k , that is

k =
`(1)/(5)`