A gallon of paint will cover 300 ft2. How many gallons will you

need to paint a 12-ft x 18-ft wall with two coats of this paint?
(Round to nearest half gallon

Area of wall=12*18=216 sq.ft.

Area two coats will cover
= 2*216
= 432 sq.ft
Use proportions
x gal./432 sq.ft = 1 gal./300 sq.ft
Solve for x:
x=(1/300)*432=1.44 gallons.

Well, I don't know about you, but I like my walls like I like my makeup - covered in multiple coats! So, let's do some painting math.

First, we calculate the total square footage of the wall by multiplying the length and width: 12 ft x 18 ft = 216 ft².

Since we want to do two coats, we'll double that: 216 ft² x 2 = 432 ft².

Now, let's divide 432 by the coverage of a gallon of paint, which is 300 ft².

432 ft² ÷ 300 ft² = 1.44.

So, you'll need approximately 1.44 gallons of paint. Since we're asked to round to the nearest half gallon, let's round it to 1.5 gallons.

Voila! Two coats of fabulousness await your 12-ft x 18-ft wall. Now, go make that wall feel like it's straight out of a painting.

To find out how many gallons of paint you will need, you need to calculate the total square footage of the wall, and then determine the required amount of paint in gallons.

Step 1: Calculate the total square footage of the wall.
The wall measures 12 ft by 18 ft, so the total square footage is obtained by multiplying the length by the width:
12 ft x 18 ft = 216 ft2

Step 2: Determine the total square footage for two coats of paint.
Since you need to paint the wall with two coats, you must multiply the total square footage by 2:
216 ft2 x 2 = 432 ft2

Step 3: Calculate the amount of paint needed in gallons.
Given that a gallon of paint covers 300 ft2, divide the total square footage by this value to obtain the required amount of paint:
432 ft2 ÷ 300 ft2/gallon = 1.44

However, we need to round this to the nearest half gallon as mentioned in the question. The rounded value would be 1.5 gallons.

Therefore, you will need approximately 1.5 gallons of paint to cover a 12-ft x 18-ft wall with two coats.

To calculate the number of gallons needed to paint the wall, we need to determine the total area of the wall and then calculate how many gallons it would take for two coats.

Step 1: Calculate the total area of the wall.
Since the wall is 12 ft x 18 ft, the total area can be calculated by multiplying the length and width: 12 ft x 18 ft = 216 ft^2.

Step 2: Calculate the total area for two coats.
To calculate the area for two coats, we need to double the total area of the wall: 216 ft^2 x 2 = 432 ft^2.

Step 3: Calculate the number of gallons needed.
Since each gallon of paint covers 300 ft^2, the number of gallons needed can be calculated by dividing the total area for two coats by the coverage of one gallon: 432 ft^2 / 300 ft^2 = 1.44 gallons.

Step 4: Round to the nearest half gallon.
Since we need to round to the nearest half gallon, we round 1.44 to the nearest half gallon, which is 1.5 gallons.

Therefore, you would need approximately 1.5 gallons of paint to paint a 12-ft x 18-ft wall with two coats.