The length of a rectangle is 9 cm more than its width. If the perimeter is 74 cm, what is the width?
Note
Let the width be w. Then length is w + 9. Perimeter is 2(length + width), so 2((w + 9) + w) = 74. This gives 4w + 18 = 74, so w = 14 cm.
The length of a rectangle is 9 cm more than its width. If the perimeter is 74 cm, what is the width?
Let the width be w. Then length is w + 9. Perimeter is 2(length + width), so 2((w + 9) + w) = 74. This gives 4w + 18 = 74, so w = 14 cm.