Answer:
y = -2x -2
x + 2y = 2
2x + y = -2 } x1
x + 2y = 2 } x2
2x + y = -2 } we eliminate 2x
2x + 4y = 4 } same signs subtract and different add respectively
-3y = -6
-3 -3
y = 2 (x , 2) we reserve
2x + (2) = -2 we take on the first equation and replace 2 on a coordinate for y
2x = -2 - 2
2x = -4
2 2
x = -2 (-2,2)
x y
For A, the scares depend on the hours studying, there is a positive relationship between the two.
Answer:
D
Step-by-step explanation:
because 4x4=16..........
58 divided by 2 equal 29 so 29-4=25 .so room 2 had 25 students .29+4=33 so room 1 had 33 students
<u><em>It can't be simplified!</em></u>
