I’m thinking maybe 12 boys?
Answer:
0.55
Step-by-step explanation:
diference= 25/100*2.20=0.55
Answer:
x=142, y=-360. (142, -360).
Step-by-step explanation:
5x+2y=-10
3x+y=66
----------------
5x+2y=-10
-2(3x+y)=-2*66
-----------------------
5x+2y=-10
-6x-2y=-132
-------------------
-x=-142
x=142
3(142)+y=66
426+y=66
y=66-426
y=-360
Yes it does mean that. As long as a number is next to a number with parenthesis with no sign in between, consider it as multiplication.
(1) Answer: Identity true
(2) Answer: Identity true
(3) Answer: Identity true
