The length of a rectangle is 7 cm more than its width. If the perimeter is 34 cm, what is the width?
Note
Let the width be w. Then length is w + 7. Perimeter is 2(length + width), so 2((w + 7) + w) = 34. This gives 4w + 14 = 34, so w = 5 cm.
The length of a rectangle is 7 cm more than its width. If the perimeter is 34 cm, what is the width?
Let the width be w. Then length is w + 7. Perimeter is 2(length + width), so 2((w + 7) + w) = 34. This gives 4w + 14 = 34, so w = 5 cm.