Question

Stacy and Neil painted 280 ft2 of their living room wall with 45 gallon of paint. How many square feet can they paint with 3 gallons of paint?

Answer 1

Hey there,

45 gallons = 280 ft^2
1 gallon = 280 / 45
= 6 2 / 9
3 gallons = 6 2 / 9 x 3
= 18.66666667
= 18.7 ft^2

Hope this helps :))

~Top♥

Answer 2

The number of square feet that can be painted with 3 gallons of paint is 18.667 ft²

Explanation:

Stacy and Neil painted 280 ft² of their living room wall with 45 gallon of paint.

To find the number of square feet that can be painted with 3 gallons of paint,

we will simply use proportion;

Let x = number of square feet that can be painted with 3 gallons of paint

280 ft² = 45 gallons

x = 3 gallons

cross multiply

45 × x = 280 × 3

45x = 840

Divide both-side of the equation by 45

45x/45 = 840/45

(on the right-hand side of the equation, 45 at the numerator will cancel-out 45 at the denominator leaving us with just x while on the right-hand side of the equation, 840 will be divided by 45)

x = 18.667 ft²

Therefore, the number of square feet that they can paint with 3 gallons of paint is 18.667 ft²