Answer:
d. 0
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
5•x=5x
5• (-5)=-25
5x-25 and 5(x-5) are equivalent
Answer:
(-2, 7); (See attachment)
Step-by-step explanation:
x + 2y = 12
7x + 2y = 0
x + 2y = 12
x = -2y + 12
Solve for y:
7x + 2y = 0
7 (-2y + 12) + 2y = 0
-12y + 84 = 0
-12y = -84
y = 7
Solve for x:
x = -2y + 12
x = -2 (7) + 12
x = -2
x = -2, y = 7
Answer:
4%
Step-by-step explanation:
40=(500*r*2)/100
40=(500*r*2)/100*100/1 both sides
4000=1000r
r=4%
Answer:
-9
Step-by-step explanation:
i used a calculater soya your welcome