The picture is a bit blurry but the perimeter of a shape is the lengths added.
(4a - 2b) + (7a + 3) + (9a - 4) = perimeter, I added the sides together
Combine like terms to get:
4a + 7a + 9a = 20a
-2b is left along becuase there are no other like terms
3 - 4 = -1
The perimeter is 20a - 2b - 1
Answer:
x=9 output 1=20.25
Output 2 equals 27
Step-by-step explanation:
This function is constant, so you do input times 2.25 for each.
The box below 6 is 9 because we are counting by 3
9 x 2.25=20.25
12 x 2.25=27
Hope this helped :)
Step-by-step explanation:
red: 2/5
White: 1/5
Black: 2/25
Green: 8/25
If she chose a marble fifty times how many greens would she get:
(8/25) x 50= 16
she would get 16 green marbles in 50 tries.
