Question

kaitlin wants to paint the ceiling of her restaurant. the ceiling is in the shape of a square. its side lengths are 39 feet. suppose each can of paint will cover 169 square feet. how many cans will she need to paint the ceiling?

Explanation:

Step1: Calculate ceiling area

The ceiling is a square. The area formula for a square is $A = s^2$, where $s$ is the side - length. Given $s = 39$ feet, so $A=39\times39 = 1521$ square feet.

Step2: Calculate number of cans

Let $n$ be the number of cans. We know that each can covers 169 square feet. So $n=\frac{1521}{169}=9$.

Answer:

9