Answer:
Karima is correct
Step-by-step explanation:
4:8 is equal to 4:8. You can put them in the calculator and divide them by 2 and you get the same equal answer. :)
7. 4x+y=8 ----- first equation
(+)
-3x-y=0
_______
x = 8 ---- second equation
substitude second equation into first equation
4(8) + y = 8
32 + y = 8
y = 24
8. 2x+5y=20 ---- first equation
(-)
2x-5y =3
________
10y = 17
y = 17/10 ---- second equation
substitude second equation into first equation
2x + 5(17/10) = 20
2x + 17/2 = 20
4x + 17 = 40
4x = 23
x = 23/4
9. 3x+2y=-10 (×2) ---- first equation
2x-5y=3 (×3)
6x + 4y = - 20
(-)
6x - 15y = 9
___________
19y = - 29
y = - 29/19 ---- second equation
substitude second equation into first equation
3x + 2(-29/19) = - 10
3x - 58/19 = - 10
3x = - 132/19
x = - 44/19
Answer:
2
Step-by-step explanation:
-6 divided by a positive number would make it a positive number welcome
Causation doesn’t equal correlation so the answer is false
Answer:
-62c - 5c = -67c
Step-by-step explanation:
(Brand 1 ) -62c (Brand 2 is 5c lower, so it is negative or minus) -5c = (Do the math and it's -67c)
