Question

a rectangular room is 14 feet by 20 feet. the ceiling is 8 feet high. a. find the length and width of the smaller wall. by (express your answer in feet) b. find the area of the smaller wall. (express your answer in square feet) c. find the area of the larger wall. (express your answer in square feet) d. find the total area of the four walls in the room. (express your answer in square feet) e. if a gallon of paint costs $36.50 and it covers 350 square feet on average, what is the cost of painting the room walls with two coats of paint?

Answer 1

a. The length and width of the smaller wall are 14 feet and 8 feet, respectively.

b. The area of the smaller wall is 14 feet x 8 feet = 112 square feet.

c. The area of the larger wall is 20 feet x 8 feet = 160 square feet.

d. The total area of the four walls in the room is 112 square feet + 112 square feet + 160 square feet + 160 square feet = 544 square feet.

e. To find the cost of painting the room walls with two coats of paint, we need to know the total area of the walls, and the cost of one gallon of paint. We can use the information provided: a gallon of paint covers 350 square feet on average and the cost of one gallon of paint is $36.50.

We can divide the total area of the walls by the coverage of one gallon of paint, then multiply that by the cost of one gallon of paint.

544 square feet / 350 square feet/gallon * $36.50/gallon = $38.34

So the cost of painting the room walls with two coats of paint is $38.34.