The length of the rectangle is 20 feet. The width is 17 feet.
Work Step by Step
Since the length is stated in terms of the width, we can let w represent the width. The width is 3 less than the length, which equals l - 3. The formula for the perimeter of the rectangle is width + width + length + length. The perimeter of the rectangle is 74, so we set up the following equation: l+ l - 3 + l - 3 + l - 3 = 74 4l - 6 = 74 4l = 80 Divide both sides by 4. l = 20. The length of the rectangle is 20 feet. The width is l - 3, which equals 20 - 3 = 17 feet.