Question

algebra

Answer 1

@Directrix

Answer 2

As somebody on OS told me, in direct variation start with y = k* x.

y = k* x

2.5 = k * .5

2.5 = .5 * k

Solve for k @EKKERKING

Then there is another step after that.

Answer 3

k = ?

Answer 4

5

Answer 5

So, y = 5x is the equation.

Last step.

y = 5*20 = ?

Answer 6

What is y when x = 20?

Answer 7

@EKKERKING

Answer 8

Waiting.....

Answer 9

100

Answer 10

Yes.