Solve the system.
0.2x + 0.5y = 4
-0.1x + 0.3y = -2

The system solution is (20, 0)

Step-by-step explanation:

Let's begin by eliminating x.  Multiply the second equation by 2, obtaining

-0.2x + 0.6y = -4, and add this result to the first equation:

0.2x + 0.5y = 4

-0.2x + 0.6y = -4

             1.1y = 0, so y must be 0.

Substituting 0 for y in the first equation, we get:

0.2x + 0 = 4.  Dividing both sides by 0.2, we get x = 20.

The system solution is (20, 0).

i used to know but i learned it a long time ago sorry

step-by-step explanation:

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.