Question

You need to replace the molding around a floor that is 15 feet long and 23 feet 6 inches wide. The molding sells for $0.50 per foot. How much will the molding cost?

Answer 1

The price of the molding is given  $ per ft, so we convert all units to ft:

23 ft 6 in = 23,5 ft, since 12 in=1 ft, so 6 in= 0.5 ft.


Thus the dimensions of the floor are 15 ft × 23.5 ft. We have 2 sides of the wall with a length of 23.5 ft, and the other 2 sides with length 15 ft.


The molding around the floor has a length of  2*15+2*23.5=30+47=77 (ft)


The cost is 77 (ft) * 0.5($ per ft) = 77*0.5 $ = 38.5 $


Answer: $ 38.5