Answer:
68 feet square
Step-by-step explanation:
The rectangle with the maximum area for a given perimeter is a square. The perimeter of a square is 4 times the side length, so the side length of the square area will be ...
(272 ft)/4 = 68 ft
_____
<em>More formally ...</em>
You can let x represent the length of one side. Then the length of the other side for the given perimeter will be 136 -x, and the area will be the product ...
area = x(136 -x)
The area function is a quadratic with zeros at x=0 and x=136. The vertex (maximum area) will be at the value of x that is on the line of symmetry between these points, at their midpoint: x = (0 +136)/2 = 68. This value of x makes the rectangle a square.
Let the number of people who attended last week be ‘x’.
Comparing to last week, 12% more people attended this week. So we have to add 12% to x
Answer:
Step-by-step explanation:
y = 0.80x + 2.50
a 7 mile ride......x = 7
y = 0.80(7) + 2.50
y = 5.60 + 2.50
y = 8.10 <=== the 7 mile ride cost $ 8.10
the ride cost 13.70.....y = 13.70
13.70 = 0.80x + 2.50
13.70 - 2.50 = 0.80x
11.2 = 0.80x
11.2 / 0.80 = x
14 = x <=== u travel 14 miles
Answer:
1. n(4.75+30+2.50)
2. 4.75n+30n+2.50n
Step-by-step explanation:
n is the number of shirts they buy. It says that each shirt costs $4.75, and for each shirt they add an extra $30 and $2.50 for the setup fee and to peint each shirt. The word each shows that you have to times. You have to times n by each number or to make it shorter put all three numbers in parenthesis put the n ouside of the parenthesis.
Hope that helps.
Answer:
fifty five hundredths = 0.55
Step-by-step explanation:
Let's use 0.45 as an example. You read this decimal by using the place value of the last digit to the right of the decimal point.
This number is read as forty-five hundredths because the last digit is in the hundredths place.
