Question

You’ve been tasked with adding soundproofing panels to 10 private offices. Each office is 12 feet by 16 feet with 8 foot ceilings. Paneling sheets are 4 feet by 8 feet, and are only applied to the walls, not the ceiling. Assume that each office has 4 walls. How many panels are required for all the offices?

Answer 1

140 panels

Explanation:

area = length × width

Answer 2

140 panels

Explanation:

step 1

Find out the area of one panel

`A=(4)(8)=32\ ft^2`

step 2

Find out the square feet of panel needed for one office

The area of the walls in one office is equal to the perimeter of the base multiplied by the ceiling

`A=2(12+16)8=448\ ft^2`

step 3

Find out the square feet of panel needed for 10 private offices

Multiply by 10

`448(10)=4,480\ ft^2`

step 4

Find out how many panels are required for all the offices

using proportion

Let

x -----> the number of panels

`(1)/(32)(panel)/(ft^2)=(x)/(4,480)(panel)/(ft^2)\\\\x= 4,480/32\\\\x= 140\ panels`