A painter needs to purchase enough paint to paint a bedroom that consists of four walls. Two of the walls are 11 feet by 10 feet and the other two walls are 12 feet by 10 feet.

The paint is sold in 1 gallon cans, and each gallon of paint will cover an area that is approximately 250 to 300 square feet. The price of the paint per gallon is $36.00.

The painter estimates that he will only need one coat of paint to cover each wall.

How many gallons of paint should the painter buy?

(2 * 11 * 10) + (2 * 12 * 10) =

220 + 240 = 460 square feet

How many cans should the painter buy?

To calculate the total area that needs to be painted, we add up the areas of all four walls.

Area of the first wall = 11 feet * 10 feet = 110 square feet
Area of the second wall = 11 feet * 10 feet = 110 square feet
Area of the third wall = 12 feet * 10 feet = 120 square feet
Area of the fourth wall = 12 feet * 10 feet = 120 square feet

Total area = 110 + 110 + 120 + 120 = 460 square feet

Now, we need to determine how many gallons of paint are needed. Let's assume the paint will cover 275 square feet per gallon (taking the average estimate of 250 to 300 square feet).

Gallons of paint needed = Total area / Coverage per gallon
Gallons of paint needed = 460 square feet / 275 square feet/gallon

Using a calculator, the result is approximately 1.67 gallons.

Since paint is usually sold in whole gallons, the painter should buy 2 gallons of paint to have enough to cover the entire bedroom.

To determine how many gallons of paint the painter should buy, we first need to calculate the total area of all four walls.

The area of a rectangle is found by multiplying its length by its width.

For the two walls that measure 11 feet by 10 feet, the area of each wall is:
11 feet * 10 feet = 110 square feet

For the two walls that measure 12 feet by 10 feet, the area of each wall is:
12 feet * 10 feet = 120 square feet

So, the total area of all four walls is:
(110 square feet + 110 square feet) + (120 square feet + 120 square feet) = 460 square feet

Since each gallon of paint covers approximately 250 to 300 square feet, we can assume the average coverage of a gallon of paint is 275 square feet.

To find how many gallons of paint the painter should buy, we need to divide the total area of the walls by the coverage of one gallon of paint:
460 square feet / 275 square feet = 1.67

Since we can't buy a fraction of a gallon, we need to round up to the nearest whole number.
Therefore, the painter should buy 2 gallons of paint.

Note: It's always a good idea to buy a little extra paint to account for any touch-ups or mistakes that may need correcting.