4x - 5y = -12
-x + 5y = 18
Add the equations together:
4x + -x = 3x
-5y + 5y = 0
-12 + 18 = 6
So now you have:
3x = 6
Divide both sides by 3:
X = 2
Now you have the value of x, replace x with 2 in one of the equations and solve for y:
4(2) -5y = -12
8 -5y = -12
Subtract 8 from both sides:
-5y = -20
Divide both sides by -5:
Y = 4
The solution is x = 2 and y = 4 which is written as (2,4)
You have not provided the options, therefore, I cannot give an exact answer. However, I can help you with the procedures.
We are given that the ratio between the width and the length of the flag is 10 to 19.
This means that:

Therefore, to get the correct choice, all you have to do is divide the width by the length, if the result is 10/19, then the dimensions given are correct.
Examples:For length = 190 and width = 100,
width / length = 100 / 190 = 10 / 19 .........> correct choice
For length = 1.9 and width = 1,
width / length = 1 / 1.9 = 10 / 19 .......> correct choice
Hope this helps :)
Answer:
A, C, E
Step-by-step explanation:
Only letters T, A, and X on the triangle can be used to describe it, regardless of the order they are in.
Hi,
Work:

To find the cost of gallons spend for 310 miles you need to first find the amount of gallons consumed on 310 miles path.

If each costs 3.5$ you need to multiply gallons with money.

You would spend 38.745$ to drive 310 miles.
Hope this helps.
r3t40