meredith wants to paint 3 of the walls in her room each wall has the shape of a rectangle with dimensions 10 feet by 12 feet she has 1 can of paint that will cover approixmately 420 square feet which method can meredith use to determine whether or not she has enough paint to complete the job?
Figure total number of square feet. Is it more or less than 420?
10*12*3 = ?
To determine whether Meredith has enough paint to complete the job, she needs to calculate the total area of the three walls she wants to paint and compare it to the coverage of one can of paint.
Step 1: Calculate the area of each wall.
The area of a rectangle is calculated by multiplying its length by its width. In this case, since each wall has dimensions of 10 feet by 12 feet, the area of each wall would be 10 feet * 12 feet = 120 square feet.
Step 2: Calculate the total area of the three walls.
Since Meredith wants to paint three walls, multiply the area of one wall by three to find the total area. In this case, the total area would be 120 square feet * 3 = 360 square feet.
Step 3: Compare the total area to the coverage of one can of paint.
Meredith should compare the total area of 360 square feet to the coverage of one can of paint, which is approximately 420 square feet. If the total area is less than or equal to the coverage of one can, then she has enough paint to complete the job. Otherwise, she will need additional cans of paint.
In this example, the total area of the three walls is 360 square feet, which is less than 420 square feet (coverage of one can). Therefore, Meredith has enough paint to complete the job.