Question

Douglas will paint two walls in his living room. One wall is 15 3/4 feet long, and the other wall is 13 1/2 feet long. Each wall has a height of 10 feet. What is the area Douglas will paint in square feet?

Answer 1

Explanation:

this is a college question ? oh, my ...

the area of a rectangle is

length × width

the 2 walls are 2 rectangles.

15 3/4 × 10

13 1/2 × 10

to be sure, let's convert both mixed numbers to full fractions :

15 3/4 = (15×4 + 3)/4 = 63/4

13 1/2 = (13×2 + 1)/2 = 27/2

so, the areas are

63/4 × 10 = 630/4 = 315/2 ft²

27/2 × 10 = 270/2 ft²

in total that is

315/2 + 270/2 = 585/2 = (584/2 + 1)/2 = 272 1/2 ft²