Question

If x = 9 when y = 36 and x is directly
proportional to y, what is x when y= 6?

Answer 1

x = 1.5

Explanation:

`(9)/(36) :(x)/(6)`

Cross multiply.

36 · x = 9 · 6

Simplify.

36x = 54

Divide each side by 36.

36x ÷ 36 = 54 ÷ 36

Simplify.

x = 1.5

Answer 2

`x = 1.5`

`Explaination :\\(36)/(9) = 4\\(6)/(4) =1.5\\Answer = 1.5`