P varies directly as I. If P is 0.5 when I is 4, find P when I is 6

Question

asked Mar 26, 2021 45.1k views

1 Answer

Dacopenhagen · Answer 1 · 2021-04-01T16:03:43+0000

Answer:

P = 0.75

Explanation:

Given that P varies directly as I then the equation relating thenm is

P = kI ← k is the constant of variation

To find k use the condition P = 0.5 when I = 4, thus

k =
(P)/(I) =
(0.5)/(4) = 0.125

P = 0.125I ← equation of variation

When I = 6, then

P = 0.125 × 6 = 0.75