Question

Jared is buying a carpet for a square room with sides that are s feet long. The carpet is $2.65 per square foot and the metal strip is $.20 per foot.

The metal strip holds down the carpet around the entire perimeter of the room, except at the doorway, which is 3 feet wide. Write an expression for the total length of the strip that Jared will need. Explain

Answer 1

(4s-3)ft

Explanation:

The 3 sides of the room will be "s" ft long. The 4th side, the one with the doorway will be "s-3" ft long, the -3 because of the doorway. Then you simply add all the sides of the doorway to get the length for the metal strip.