Answer: 60% increase
Step-by-step explanation:
First, find how many more people attended this year: 1,520 - 950 = 570.
Now, find what percent of 950 570 is: 950 * x = 570 → x = .6 * 100 = 60% :)
Solve for x over the real numbers:
-3 x^2 + 16 x + 12 = 0
The left hand side factors into a product with three terms:
-(x - 6) (3 x + 2) = 0
Multiply both sides by -1:
(x - 6) (3 x + 2) = 0
Split into two equations:
x - 6 = 0 or 3 x + 2 = 0
Add 6 to both sides:
x = 6 or 3 x + 2 = 0
Subtract 2 from both sides:
x = 6 or 3 x = -2
Divide both sides by 3:
Answer: | x = 6 or x = -2/3
Length = 40ft
width = 20ft
40 + 40 + 20 + 20 = 120
