9514 1404 393
Answer:
0.78b
Step-by-step explanation:
The sale price will be ...
b - 22% × b = b(1 -22%) = b(1 -0.22)
= 0.78b . . . . single-term expression for sale price
You can reduce the expression by cancelling out common factor
:
Answer:18 oatmeal cookies.
Step-by-step explanation:
(8c+2a)(4+b)
(8c)(4)+(8c)(b)+(2a)(4)+(2a)(b)
32c+8bc+8a+2ab
2ab+8bc+8a+32c
28.80 + .20X = X
.20X = X - 28.80
1/5 = .20
X/5 = X -28.80
X = 5X - 144
Set the new X equal to the original X
28.80 + .20X = 5X - 144
172.8 + .20X = 5X
172.8 = 4.8X
36 = X
36$ is the original price
To check,
28.80 + (.20 x 36) = 36
28.80 + 7.2 = 36
36 = 36
