Answer:
Hope this helped.
Step-by-step explanation:
2:x=2y+20 y=1/2x-10
4:x=4/5y+15/5 y=5/4x-4
6:x=-2y+10 y=-1/2x+5
8:x=-7/3y+100/3 y=-3/7x+100/7
Answer:
(4, 3)
Step-by-step explanation:
Plug in x - 1 where y is. The equation will turn in 2x - 3(x - 1) = -1. Distribute, and you'll have 2x -3x + 3 = -1. Combine like terms (2x and -3x) and you'll have -x + 3 = -1. Subtract 3 from both sides, and you'll have -x = -4. Divide by -x (or -1) on both sides, and you'll have x = 4. Since y = x - 1, y = 3, since 4 - 1 = 3. Sorry if this sounds repetitive btw. Good luck :D
It would be a 90%. In the calculator 18 is what percent of 20.
