It is an expression with a single variable, x.
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There are 12 inches in 1 foot so each tile is 1x1 ft. This means nine tiles will fit along nine ft and twelve tiles will fit along twelve ft The area of this would be 9x12 Which is 108 In conclusion 108 12x12 in tiles will cover 9x12 ft
Nine feet is 108 inches @12 inches per foot.
9²+12 ²=225 The square root of 225 is 15. Therefore, the hypotenuse is 15 according to Pythagoras' theorem.
The answer is 120. Simply add the numbers together like you would for two plus two. To check your work, a calculator is the best option.
1 and 1/3 tiles of 9 x 12 tiles will equal 1 square feet. Therefore, it will take 25 times 1-1/3 tiles or approx. 34 9x12 tiles to tile a 25 square foot area.