Answer:
a) $50,880
b) $48
c) 1060
Step-by-step explanation:
a)
-320x^2 + 1920x + 48000 = 0
This is a parabola that opens downward. It has a maximum value. The maximum value occurs at x = -b/(2a)
x = -b/(2a) = (-1920)/(2(-320)) = 1920/640 = 3
The maximum revenue, y, is the value of the function evaluated at x = 3.
f(x) = -320x^2 + 1920x + 48000
f(-3) = -320(3)^2 + 1920(3) + 48000
f(-3) = 50,880
The maximum revenue is $50,880
b)
Since maximum revenue occurs at x = 3, and since x represents the number of $4 discounts, the discount is 3 * $4 = $12. The price is $60 - $12 = $48
c)
$50,880/$48 = 1060
I think top one is 6 and bottom is 11ft
Answer:
It decreases.
Step-by-step explanation:
$4.28 will go up because it is greater.
Answer:
y = 24
Step-by-step explanation:
5/4y-18=y/2
Multiply by 4 on all sides to get rid of the fractions
4(5/4y-18)=4*y/2
5y - 72 =2y
Subtract 5y from each side
5y-5y - 72 =2y-5y
-72 = -3y
Divide by -3
-72/-3 = -3y/-3
24 =y
