A gallon of a certain kind of paint will cover 224 square feet of surface. In painting two walls; one 36' by 8' and the other 24' by 9', the number of gallons of paint used is:
I'm sorry I don't really know what to do, could someone please explain?
First find the total area of the two walls.
36 * 8 = 288 square feet
24 * 9 = 216 square feet
Add the two totals and divide by 224.
oh my gosh, thank you so much!
You are very welcome.
Sure! To solve this problem, we need to calculate the total area of the two walls and then determine how many gallons of paint will be needed based on the given coverage of 224 square feet per gallon.
Let's start by calculating the area of each wall:
Wall 1: 36 feet by 8 feet
Area of Wall 1 = length × width = 36 ft × 8 ft = 288 square feet
Wall 2: 24 feet by 9 feet
Area of Wall 2 = length × width = 24 ft × 9 ft = 216 square feet
Next, we add the areas of both walls to find the total area:
Total Area = Area of Wall 1 + Area of Wall 2 = 288 square feet + 216 square feet = 504 square feet
Now, we need to determine how many gallons of paint will be needed. We know that one gallon covers 224 square feet of surface.
To find the number of gallons needed, we divide the total area by the coverage per gallon:
Number of Gallons = Total Area / Coverage per Gallon
Number of Gallons = 504 square feet / 224 square feet per gallon
Number of Gallons ≈ 2.25
Since we can't have a fraction of a gallon, we round up to the nearest whole number:
Number of Gallons ≈ 3
Therefore, you will need approximately 3 gallons of paint to cover both walls.