SOLUTION: How many 9 in. × 9 in. tiles does it take to tile the floor of a 12 ft. × 15 ft. kitchen?

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Question 254155: How many 9 in. × 9 in. tiles does it take to tile the floor of a 12 ft. × 15 ft. kitchen?
Answer by drk(1908) About Me  (Show Source):
You can put this solution on YOUR website!
convert 12 feet into 144in and 15 feet into 180 in. We have
%28%28144%29%28180%29%29%2F%28%289%29%289%29%29
We reduce to get
%2816%29%2A%2820%29 = 320 tiles.