A construction company is replacing a window in a house. the window is currently 3 feet wide by 4 feet tall. The homeowner wants to add 4 1/2 inches to each side of the window. What is the new perimeter of the window in feet? Justify your reasoning.

For this case, the first thing you should do is take into account the following unit conversion:

1 foot = 12 inches

Therefore, the perimeter of the new window is given by:

p = 2w + 2l

Where,

w: width

l: long

Substituting values:

p = 2 * (3 + ((4 1/2) / 12)) + 2 * (4 + ((4 1/2) / 12))

p = 15.5 feet

Answer:

The new perimeter of the window in feet is:

p = 15.5 feet