Question

Determine the constant of variation for the direct variation given.

R varies directly with S. When S is 16, R is 80.

1/5
5
16

Answer 1

B. 5

Explanation:

We have been given that R varies directly with S. When S is 16, R is 80. We are asked to find constant of variation.

We know that two directly proportional quantities are in form , where,

k = Constant of variation.

Upon substituting our given values, we will get:

Therefore, the constant of variation is 5 and option B is the correct choice.

Explanation:

Answer 2

B. 5

Explanation:

We have been given that R varies directly with S. When S is 16, R is 80. We are asked to find constant of variation.

We know that two directly proportional quantities are in form
`y=kx`, where,

k = Constant of variation.

Upon substituting our given values, we will get:

`R=k*S`

`80=k*16`

`(80)/(16)=(k*16)/(16)`

`5=k`

Therefore, the constant of variation is 5 and option B is the correct choice.