Answer:
m = 35
Step-by-step explanation:
∵ m ∝ xy
∴ m = kxy
∵ m = 7 when x = 3 and y = 15
∴ 7 = k (3) (15)
∴ 7 = 45k ⇒ ∴ k = 7/45
∴ m = 7/45 xy
∵ x = 25 and y = 9
∴ m = (7/45) (25)(9) = 35
B, because when you add 90+80 you get 170 and 170/2 = 85
answer:
21 + 3x (you would not put the x again since it is already given)
step-by-step explanation:
- we have to distribute 3 to the expression in the parenthesis
3 (7 + x)
= 21 + 3x
- this will be the expression once we distribute
Answer:
A.
Step-by-step explanation:
i'm 99% sure!
