What is the width of the terrace?
1 answer:
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To solve this problem you must apply the proccedure shown below:
1. You have that the total area is obtained by applying the formula for calculate the area of a rectangle and multiply it by the four walls:
2. You know that each gallon of paint covers 100 ft², therefore, you can calculate the amount of gallons needed (which you can call ), if you divide the total area of the walls by the area covered by each gallon:
The answer is: 12 gallons.