# algebra

posted by
**danica**
.

A heating duct has a rectangular cross section whose area is 40(inches squared).

If it is 3in longer than it is wide then what is its length and width. i need both equation and answer

posted by
**danica**
.

A heating duct has a rectangular cross section whose area is 40(inches squared).

If it is 3in longer than it is wide then what is its length and width. i need both equation and answer