Step-by-step explanation:
y = x - 4 and y = 4x + 2
=> x - 4 = 4x + 2
=> 3x = -6
=> x = -2
y = x - 4 = (-2) - 4 = -6
The solutions are x = -2 and y = -6.
Answer:
A, $1.08
Step-by-step explanation:
1.20 / 90 = 1.08
use a calculator
let y = x^2
4y^2 -21y + 20 = 0
solve for y
then substitute back in to get x
Answer:
-12.5 i think
Step-by-step explanation:
