Question

The value of y varies directly with x. When y=75,x=1/2. What is the value of y when x is 2 1/4?

Answer 1

337 1/2

Explanation:

I used a ratio table to help me get to the answer.

My work is shown below..

Answer 2

direct variation means y=kx (inverse variation is yx=k or y=k/x)

so we are given that:

75=k/2, so k=150 which means:

y=150x now

y(2.25)=150(2.25)=337.5