Question

The perimeter of the top of a desk is 54 inches if the length of the desk is 15 inches what is the width of the desk

Answer 1

The width of the desk is 12 inches.

Explanation:

Given:

The perimeter of the top of a desk is 54 inches.

The length of the desk is 15 inches.

Now, to find the width of the desk.

Let the width of the desk be
`x`.

Putting the formula of perimeter to get the width:

`Perimeter = 2(length + width)`

⇒
`54=2(15+x)`

⇒
`54=30+2x`

Subtracting both sides by 30 we get:

⇒
`24=2x`

Dividing both sides by 2 we get:

⇒
`12=x`

⇒
`x=12\ inches`

Therefore, the width of the desk is 12 inches.