B) 3 chairs per minute
C) 4 chairs per minute
D) 5 chairs per minute
Answer:
x = 8
y = 30
Step-by-step explanation:
This is a simple systems of equations problem. You'd want to write 2 equations for the 2 pieces of information they gave you.
x + y = 38
y - 22 = x
There are multiple ways to solve it, but since they give you what x equals, I would substitute in into the other equation.
(y - 22) + y = 38
2y - 22 = 38
2y = 60
y = 30
You can take y = 30 and plug it into an original equation for the value of x.
x + 30 = 38
x = 8
I hope this helped!
–13 + 27 = 27 + (–13)
B.
–21 + (11 + 13) = (–21 + 11) + 13
C.
4(–3 + 5) = 4(–3) + 4 ∙ 5
D.
–(–8 + 3) = 8 + (–3)