Question

Stacy and Neil painted 280 ft^2 of their living room wall with 4/5 gallon of paint. How many square feet can they paint with 3 gallons of paint? Enter your answer in the box.

Answer 1

The answer is 1050 ft^2

Answer 2

we know that

Stacy and Neil painted $280\ ft^2$ of their living room wall with $4/5\ gallon$ of paint

so

by proportion

Find how many square feet can they paint with $3$ gallons of paint

$\frac{280}{(4/5)} \frac{\ ft^{2} }{gallons} =\frac{x}{3} \frac{\ ft^{2} }{gallons} \\ \\x* \frac{4}{5} =3*280\\ \\x=\frac{5}{4}*3*280\\ \\x=1,050\ ft^{2}$

therefore

the answer is

$1,050\ ft^{2}$