Answer:c=(-15-9d)/6
Step-by-step explanation:
15=-3(2c+3d)
Open brackets
15=-6c-9d
Add 9d to both sides
15+9d=-6c-9d+9d
15+9d=-6c
Divide both sides by -6
(15+9d)/-6=-6c/-6
-(15+9d)/6=c
c=-(15+9d)/6
c=(-15-9d)/6
Length (L): 2w + 6
width (w): w
Perimeter (P) = 2L + 2w
240 = 2(2w + 6) + 2(w)
240 = 4w + 12 + 2w
240 = 6w + 12
228 = 6w
38 = w
Length (L): 2w + 6 = 2(38) + 6 = 76 + 6 = 82
Answer: width = 38 ft, length = 82 ft
First, do what is inside the parentheses.
Then do the exponents.
Finally, mulltiply the numbers.
(8 - 5)^2 * (5 - 2)^2 =
= 3^2 * 3^2
= 9 * 9
= 81