Question

8. The length of a rectangle is 3 feet longer than the width. If the width is x feet, how long is the rectangle?

Answer 1

Let the width be x feet. As length is 3 feet longer, it is x+3 feet. As perimeter is twice of te sum of length and width, it is 2×(x+3+x)=2×(2x+3)=4x+6 feet.

Explanation: