Question

Saleh has 42 m of fencing around his garden.

The garden is rectangular in shape, and its
length is equal to twice the width minus 3 m.
Which of the following system of equations
can use to find the length and width of the garden?

A. 2l+2w=42
l=2w-3 B. l+w=42
w=2l-3
C. 2l+2w=42
l=w-3 D. lw=42
l=2w-3

Answer 1

The correct answer is A.

Perimeter is 42m

Perimeter formula:
2l + 2w = 42

Length = Twice the width - 3
= 2w - 3