Question

2 la largeur, en mètres, d’un rectangle est égale à s. écris une expression pour la longueur sachant que celle-ci a: (a) 2 m de plus que la largeur; (b) 1 m de moins que le double de la largeur.

Explanation:

Part (a)

Step 1: Understand the relationship

The length is 2 meters more than the width. The width is \( s \) meters.

Step 2: Form the expression

To find the length, we add 2 to the width \( s \). So the expression for the length is \( s + 2 \).

Part (b)

Step 1: Understand the relationship

The length is 1 meter less than double the width. Double the width is \( 2\times s=2s \).

Step 2: Form the expression

To find the length, we subtract 1 from \( 2s \). So the expression for the length is \( 2s - 1 \).

Answer:

s:
(a) The length is \( \boldsymbol{s + 2} \) meters.
(b) The length is \( \boldsymbol{2s - 1} \) meters.