10.Eli is putting a cement slab in his backyard. The original slab was 8 ft by 6 ft. He decided to enlarge the slab by adding x feet to each side. The area of the new slab is 120 ft2. Find the new dimensions of the new slab.
Answers
Answered by
0
Answer:
oo
Step-by-step explanation:
if bn jjj mock Hilton tick helpful fulfillment
Answered by
3
Answer: 10ft x 12ft
Step-by-step explanation:
x^2 + 14x + 48 = 120
x^2 + 14x - 72 =0
(x + 18)(x - 4) =0
x cant be negative so x ≠ 18
x = 4
length
L = x + 8
plug in 4
L = 4 + 8
L = 12
width
W = x + 6
plug in 4
W = 4 + 6
W = 10
Similar questions