A)

Find the width of a rectangle with a perimeter of 90 and a length of 15.
(1 point)
90
15
45
30

1 answer

Let's call the width of the rectangle W.

The perimeter of a rectangle is given by the formula P = 2L + 2W, where L is the length and W is the width.

Given that the length is 15 and the perimeter is 90, we can substitute these values into the formula and solve for W:

90 = 2(15) + 2W
90 = 30 + 2W
2W = 90 - 30
2W = 60
W = 60/2
W = 30

Therefore, the width of the rectangle is 30.