Posted by **Anonymous** on Sunday, April 12, 2009 at 3:40am.

A school is soundproofing a band room with insulating tiles. The room is rectangular and is 30 feet long, 40 feet wide, and 12 feet high. All four walls, the floor and the ceiling will be covered, but a window that is 10 feet long by 4 feet high will not be covered. How many square feet of tiling is needed? If each tile is 8 inches by 8 inches, how many tiles should be ordered?

thanks =)

- math -
**drwls**, Sunday, April 12, 2009 at 5:59am
First compute the total area.

Floor and ceiling are 30x40 = 1200 sq ft each.

Two walls are 40 x 12 = 480 sq ft (each)

The other two wall are 30 x 12 = 360 sq ft (each)

Add them up and subtract the window area of 40 sq ft.

A = 2(1200 + 480 + 360) - 40 = ?

For the number of tiles needed, divide by the area of each tile, which is (2/3)^2 = 4/9 sq ft per tile.

- math -
**xxxx**, Sunday, April 12, 2009 at 9:53am
i get the "how many square feet of tiling is needed?" part. but each tile is given in inches and area is in feet. i don't get how to convert it to inches. please explain again...

How many square feet of tiling is needed? 4040sq ft.

How many tiles should be ordered? ...

- math -
**Damon**, Sunday, April 12, 2009 at 10:08am
8 inches = 8/12 = 2/3 feet

so

8*8 = 64 in^2

or

2/3 * 2/3 = 4/9 ft^2 as Dr WLS said

You calculate the ares in square feet and divide it by 4/9 ft^2 /tile

In other words multiply the square feet needed by 9/4

## Answer This Question

## Related Questions

- Geometry - the walls, floor, and ceiling of a room form a rectangular solid. The...
- Geometry - A gallon of paint costs $20 and covers 465 square feet. Three coats ...
- math problems - a room is 24 feet long,18 feet wide,and 9 feet high.how many ...
- math - A room is 24 feet long, 18 feet wide, and 9 feet high. How many square ...
- Algebra - In a rectangular room 10 feet wide 40 feet long and 50 feet high there...
- Math - Minnie is painting her walkin closet. Each gallon of paint covers 275 ...
- Geometry - a room is 18 feet long and 14 feet wide with walls 10 feet high. If ...
- Math - Logan puts a wallpaper border along the top edge of the Four Walls of a ...
- Algebra 1 - Please Help Me!! "Crown Molding' is a decorative strip of wood ...
- Math - A throw rug is 8 feet long and 4 feet wide it is a rectangular room with ...

More Related Questions