Question

Your school is painting the shop room. it measures 30 feet by 100 feet and has a ceiling that is 12 feet tall. paint costs $14.75 and a gallon covers 400 feet. what is the wall area of the room? 1,560 square feet 3,120 square feet 2,920 square feet 2,860 square feet

Answer 1

3,120 square feettttttttt

Answer 2

The wall area of the room is
`3120ft^(2)`

Explanation:

I add a graph of the situation in order to explain the question.

In the graph we can see the drawing of the shop room.

I put the measures in the graph.

In order to calculate the wall area of the room, we are going to calculate the area of wall 1, wall 2, wall 3 and wall 4 and then sum between them.

Areas :

`Wall_(1)=(30ft).(12ft)=360ft^(2)`

`Wall_(2)=(100ft).(12ft)=1200ft^(2)`

`Wall_(3)=(30ft).(12ft)=360ft^(2)`

`Wall_(4)=(100ft).(12ft)=1200ft^(2)`

If we sum all the areas :

`Wall_(1)+Wall_(2)+Wall_(3)+Wall_(4)=360ft^(2)+1200ft^(2)+360ft^(2)+1200ft^(2)=3120ft^(2)`

We find that the wall area of the room is
`3120ft^(2)`