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

Let's assume that the width of the desk is "w" inches.

The perimeter of the top of the desk is the sum of the lengths of all four sides. Since we know the length of the desk is 15 inches, we can write an equation:

Perimeter = 2(length + width)

54 = 2(15 + w)

Now we can solve for "w":

54 = 30 + 2w

Subtracting 30 from both sides:

24 = 2w

Dividing both sides by 2:

w = 12

Therefore, the width of the desk is 12 inches.