Question

melissa wants to replace the wooden floor at her gym. the floor is in the shape of a rectangle. its length is 40 feet and its width is 30 feet. suppose wood flooring costs $12 for each square foot. how much will the wood flooring cost for the floor?

Explanation:

Step1: Calculate floor area

The area $A$ of a rectangle is $A = length\times width$. Here, length $l = 40$ feet and width $w = 30$ feet. So $A=40\times30 = 1200$ square - feet.

Step2: Calculate total cost

The cost per square - foot is $12$ dollars. The total cost $C$ is the cost per square - foot times the area. So $C = 12\times A$. Substitute $A = 1200$ into the formula, we get $C=12\times1200=14400$ dollars.

Answer:

$14400$