Question

If x varies directly as y and x=9when y=15,find x when y=45.​

Answer 1

answer :

x varies y

x = ky

or, k = x/y.......(I)

when x = 9 and y = 15

k = x/y

or, k = 9/15 = 3/5

when y = 45

k = x/y

or, x/45 = 3/5

or, x = (3×45)/5 = 27

so the x = 27.[answer]

Answer 2

Step-by-step explanation:

X = 9 Then

Y = 15

If Y = 45 = 15 × 3

Then X = 9×3 = 27