Question

The length of a room is 7.25 feet longer than the width, x, of the room. Which expression represents the perimeter of the room?

A. 2x+14.5

B. 2x+7.25

C. 4x+14.5

D. 4x+7.25

I know the answer i just what to see what you think.

Answer 1

B

Explanation:

Because of the fact that the room is 7.25ft longer than the width which is x, there are 2 of x. One on the width one on the length. SInce the length is 7.25 longer it would be 2x + 7.25

Answer 2

Answer:
P = 14.5+4x
Explanation:
Let the width of the room is x.
Length = 7.25 feet longer than the width = 7.25 +x
We need to find an expression the represents the perimeter of the room.
Perimeter = sum of all sides
P = 2(l+b)
l is length and b is width
P = 2(7.25 +x+x)
=2(7.25 +2x)
=14.5+4x
Hence, the required expression for the perimeter is 14.5+4x.