A home has a living room that is 14 ft. wide, 22 ft. long, and a height of 9ft. Bob needs to paint

the room. He has to paint the walls and the ceiling. There are two 3.0 ft. by 5.0 ft. windows and

a 4.0 ft. by 7.0 ft. opening into the room. A gallon of paint covers 320 ft? How many gallons of

paint are needed? Explain how you reached your answer. (All data are accurate to two

significant figures.)

Question

Sharon Hanson

Mathematics

3 March, 20:31

A home has a living room that is 14 ft. wide, 22 ft. long, and a height of 9ft. Bob needs to paint

the room. He has to paint the walls and the ceiling. There are two 3.0 ft. by 5.0 ft. windows and

a 4.0 ft. by 7.0 ft. opening into the room. A gallon of paint covers 320 ft? How many gallons of

paint are needed? Explain how you reached your answer. (All data are accurate to two

significant figures.)

+5

Answers (1)

Know the Answer?

Aditya Wilcox · Answer 1

Step-by-step explanation:

Let's find the volume of the room in ft³ and that will give

14*22*9=2772ft³

There are deductions. Hence we subtract them from this value

3*5=15, but there are two, hence 15*2=30ft²

And 4*7=28ft²

Hence 2772 - (30+28) = 2714

Dividing this value by 320 gives

8.4 (to 2s. f)