Answer:
Dimensions that minimize is; 20 ft x 100 ft
Step-by-step explanation:
Let the width and length be x and y respectively.
We are given area as 2000 Sq.ft.
Thus;
xy = 2000 - - - (eq 1)
We are told that the brick wall costs $20 per linear foot and the chain link costs $4 per linear foot. Thus;
C(x) = 20x + 4y
From eq(1),y = 2000/x
Thus;
C(x) = 20x + 4(2000/x)
C(x) = 20x + 8000/x
To minimize this, we will differentiate and equate to 0.
Thus;
C'(x) = 20 - 8000/x²
Equating to zeeo;
20 - 8000/x² = 0
20 = 8000/x²
20x² = 8000
Divide both sides by 20;
x² = 8000/20
x² = 400
x = √400
x = 20 ft
Putting 20 for x in eq 1,we have;
20y = 2000
y = 2000/20
y = 100 ft
Answer:
m=36×20
Step-by-step explanation:
A hybrid SUV uses 36 miles per gallon in the city.
The equation that could be used to find how many miles a hybrid SUV can travel in the city on 20 gallons of gas is m=36×20.
Answer:
The number of people on each bus is 32
Step-by-step explanation:
We are given
Total number of students =267
Total number of adults =21
So,
Total number of passengers = ( Total number of students)+(Total number of adults)
now, we can plug values
Total number of passengers =267+21
Total number of passengers =288
We are given
Number of buses=9
so,
Number of passengers on each bus = (total number of passengers)/( Number of buses)
now, we can plug values
Number of passengers on each bus is
So,
The number of people on each bus is 32
Answer:24 red 48 yellow and 24 white.
Step-by-step explanation:
Math
Answer:
Option C
Step-by-step explanation:
You need to begin by separating the shape into two distinct rectangles. The larger one has dimensions 15 cm * 8cm, while the smaller one has dimensions 7cm * 5cm. Adding these together, you get 15*8+7*5=155 square centimeters, or option C. Hope this helps!
