Mathematics, 29.04.2021 22:50 barbar12345
Alexis needs to paint the four exterior walls of a large rectangular barn. The length of the barn is 80 feet, the width is 50 feet, and the height is 30 feet. The paint costs $28 per gallon, and each gallon covers 420 square feet. How much will it cost Alexis to paint the barn?
Net of the barn
Show your work
Length: 80 ft
Width: 50 ft
Height: 30 ft
I need help on the highlighted section, please help and explain (so I can understand).
Step 1: Find the area of the 4 walls
Find the area of the front and back walls
Find the area of the left and right walls
Add them together
Area= 7,800ft^2
Step 2: Find how many gallons of paint you need using your answer from step 1 if ONE gallon covers 420 square feet.
Gallons
Area Covered
1
6
12
18
19
20
Step 3: Find how much money it will cost to purchase the number of gallons above if 1 gallon costs $28
Answers: 1
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