the answer is 4.6 or 4.60
Answer:
the unknown number is -13
Step-by-step explanation:
4n -7 = -59
4n = -59 +7
n= -52 /4
n = -13
Let x be the shortest shelf. The other shelves measures x + 2, x + 4, and x + 6. These lengths should add up to 5 ft or 60 inches
x + x + 2 + x + 4 + x + 6 = 5
The value of x is 12. Therefore, the shelves are 12, 14, 16, and 18 inches long. The longest shelf is x + 6. Thus, the answer is letter C.
Answer:
x=36 y=48
Step-by-step explanation:
Given:
Perimeter of a rectangular paper = 22 inches.
Area of the rectangular paper = 28 square inches.
To find:
The dimensions of the rectangular paper.
Solution:
Let l be the length and w be the width of the rectangular paper.
Perimeter of a rectangle is:

Perimeter of a rectangular paper is 22 inches.


...(i)
Area of a rectangle is:

Area of the rectangular paper is 28 square inches.

Using (i), we get



Splitting the middle term, we get



Using zero product property, we get


If
, then by using (i)


If
, then by using (i)


Therefore, the dimensions of the paper are either
or
.