Question

Given: r is inversely proportional to s. If r = 16 when s = 3, then write the formula for the relation between r and s.

a. r= S/48
C. r=s/16
b. r= 48/s
d. r= 16/s
Please select the best answer from the choices provided

Answer 1

B

Explanation:

Given that r is inversely proportional to s then the equation relating them is

r =
`(k)/(s)` ← k is the constant of proportion

To find k use the condition r = 16 when s = 3

k = rs = 16 × 3 = 48

r =
`(48)/(s)` ← equation of variation → B