The value of y is directly proportional to the value of x. If y = 288 when x = 32. What is the value of y when x = 25? Algebra 1

Question

asked Oct 16, 2019 175k views

1 Answer

Breton · Answer 1 · 2019-10-21T16:39:51+0000

Answer:

y = 225

Explanation:

since y and x are directly proportional the equation relating them is

y = kx ← k is the constant of proportionality

to find k use the given condition y = 288 when x = 32

k =
(y)/(x) =
(288)/(32) = 9

y = 9x ← is the equation of proportionality

when x = 25, then

y = 9 × 25 = 225