Question 742433
we are given

The length of a rectangular boat storage shed must be 4 meters more
than the width. The perimeter must be at least 120 meters. What widths
of the shed will make the perimeter at least 120 meters?

w is width and l (length) = w + 4, also P (perimeter), we have

2w + 2*(w+4) = P > or = 120
2w + 2w + 8 > or = 120
4w > or = 112

w > or = 28 meters