SOLUTION: You want to tile your kitchen floor. The floor measures 30 ft by 18 ft. How many tiles, each a square with side 1 1/2 ft, should you purchase for the job?

Algebra ->  Surface-area -> SOLUTION: You want to tile your kitchen floor. The floor measures 30 ft by 18 ft. How many tiles, each a square with side 1 1/2 ft, should you purchase for the job?      Log On


   



Question 352506: You want to tile your kitchen floor. The floor measures 30 ft by 18 ft. How many tiles, each a square with side 1 1/2 ft, should you purchase for the job?
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
The floor area is 30 ft x 18 ft, or 540+ft%5E2.
The area of each square tile is 3ft%2F2+%2A3ft%2F2=+9ft%5E2%2F4.
Let x = number of tiles needed to cover 540+ft%5E2 of floor area.
Then 9%2F4%2Ax+=+540.
x+=+540%2A4%2F9
x=240