Answer: (4,5)
Step-by-step explanation:
Anything less than 4 and 5, would be equal to or less than 4
Answer:
8 pounds
Step-by-step explanation:
6 pounds of hamburger x 7 days a week = 42 pounds of hamburger used
50 - 42 = 8 pounds of unused hamburger at the end of the week
Answer:
Maximum area = 800 square feet.
Step-by-step explanation:
In the figure attached,
Rectangle is showing width = x ft and the side towards garage is not to be fenced.
Length of the fence has been given as 80 ft.
Therefore, length of the fence = Sum of all three sides of the rectangle to be fenced
80 = x + x + y
80 = 2x + y
y = (80 - 2x)
Now area of the rectangle A = xy
Or function that represents the area of the rectangle is,
A(x) = x(80 - 2x)
A(x) = 80x - 2x²
To find the maximum area we will take the derivative of the function with respect to x and equate it to zero.

= 80 - 4x
A'(x) = 80 - 4x = 0
4x = 80
x = 
x = 20
Therefore, for x = 20 ft area of the rectangular patio will be maximum.
A(20) = 80×(20) - 2×(20)²
= 1600 - 800
= 800 square feet
Maximum area of the patio is 800 square feet.
= 5.45 × 1.5/0.025
= 5.45 x 60
= 327
Answer= 327
Hope this helps! :)