Lisa is painting a fence that is 26 feet long and 7 feet tall. A gallon of paint will cover 350 square feet. How many gallons of paint will Lisa need?

Question

It is a question that is a proportion

Answer 1

26 ft x 7 ft = 182 ft^2 if 1 gallon of paint covers 350 ft^2 then 182 ft^2 × 1 gallon / 350 ft^2 =  0.52 gallon. So little bit more than half a gallon.

Answer 2

First, find the area of the fence.

 

Area = 26 feet * 7 feet

Area = 182 square feet

 

 

Then set the proportion.

 

182 / 350 = x / 1

 

 

where x is the number of gallons of paint for the fence.

 

Divide 182 by 350.