SOLUTION: The length of a rectangular room is 9 less than twice the width, and the width is 18feet. If square porcelain tiles 3 feet long are used to cover the floor, how many tiles are need

Algebra ->  Surface-area -> SOLUTION: The length of a rectangular room is 9 less than twice the width, and the width is 18feet. If square porcelain tiles 3 feet long are used to cover the floor, how many tiles are need      Log On


   

Question 1141681: The length of a rectangular room is 9 less than twice the width, and the width is 18feet. If square porcelain tiles 3 feet long are used to cover the floor, how many tiles are needed?
A)27
B)54
C)81
D)162
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
Length, 2%2A18-9=27
Floor Area 27%2A18

How many porcelain 3 foot by 3 foot tiles?
%2827%2A18%29%2F%283%2A3%29
highlight%2854%29