Answer:
28
Step-by-step explanation: It’s simple. For every 50 students, there’s 7 birthdays in March. So 1400 divided by 50 equals 28
x+2y=4x+2y=4 hope this helps
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.
Answer: 17 9/11
Step-by-step explanation: 5.5/3.5 = 28/x
3.5 * 28 = 98 / 5.5 = 17 9/11
Answer:
the second one
Step-by-step explanation:
