Question

Susan is painting her living room. Two of the walls are 10.75 feet long and 7 feet tall, and two of the walls are 6.875 feet long and 7 feet tall. If half a gallon of paint covers 200 square feet, how much paint will Susan need?

Answer 1

2.63903744 gallons of paint

Explanation:

Check image below for explanation

If .5 gallon covers 200

and Susan needs 246.75

1 whole gallons covers 400 (too much)

.5 gallon = 200 paint

?? gallon = 46.75 paint

200 / 46.75 = 4.27807487

.5 / 4.27807487 = 2.13903744

2.13903744 gallon = 46.75 paint

So,

.5 gallon+ 2.13903744 gallon = 2.63903744 gallons

(200 paint + 46.75 paint = 246.75 paint)

2.6 gallons (rounded)