Question

HURRY PLEASE
10. If y = 20 when x=8, what is the value of x when
y=-2?

Answer 1

`x = - (4)/(5) \\`

Explanation:

In order to solve this question we use ratio and proportion

From the question

y = 20 when x = 8

So we have

If y is 20 when x is 8

Then when y is - 2 x is

`( - 2 * 8)/(20) = - (16)/(20) = - (4)/(5) \\`

We have the final answer as

`x = - (4)/(5) \\`

Hope this helps you