Convert 10 ft to inches by multiplying it by 12. That’s 120 inches. Divide this number by 20 inches per strip to get 6 strips needed.
Answer: 25%
Step-by-step explanation:
You said it eight there he at 25%
Answer:
$68.8
Step-by-step explanation:
27.52/2 = 13.76
13.76 x 5 = 68.8
4n² - 16n - 84 = 0
Multiply both sides by 1/4 :
n² - 4n - 21 = 0
Add 21 to both sides:
n² - 4n = 21
Complete the square by adding 4 to both sides:
n² - 4n + 4 = 25
(n - 2)² = 25
Solve for n :
n - 2 = ± √25
n - 2 = ± 5
n = 2 ± 5
Then n = 2 + 5 = 7 or n = 2 - 5 = -3.
It is easier to compare a positive number and a negative number because it’s just like regular adding
