Mr. Santos is carpeting his living room. The room measures 21 feet by 15 feet. The carpeting costs $9 per square foot. How much carpeting will he need (in square feet), and how much will it cost?
To solve this problem you must apply the proccedure shown below: 1- You have that the area of the living room is: A=lw (Area of the rectangle); where l is the lengt and w is the width. A=(21 feet)(15 feet) A=315 feet² 2- The cost is: Cost=315 feet²x$9 Cost=$2835 The answer is: He will need 315 feet² and it will cost $2835
