If we multiply the top equation by -4 we can get rid of the x so:
-4x+20y=-12
4x-4y=12
Add these up
16y=0
Y=0
X=3
6 / 25
= 6 / 25 * (2 / 2) = 12 / 50
= 6 / 25 * (3 / 3) = 18 / 75
Equivalent ratio is 12 / 50 or 18 / 75
The answer is 40/3
First do 8/1 divided by 3/5
Reciprocal 8/1 divided by 5/3
Answer: 40/3 (:
5 because if for there is 20 y when there is 4 x then that means that for every x there is 5 y