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# How many 12 x 12 tiles are needed for a 15'x 15 'area?

Updated: 12/21/2022

Wiki User

11y ago

15'x15' is 225 square feet; so I would figure on 225 tiles. I would get a few extras in case some crack.

Wiki User

11y ago

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Q: How many 12 x 12 tiles are needed for a 15'x 15 'area?
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Suppose the height is 15x cm. Then the width is 8x cm. Then the surface area is 2*(15x*8x + 8x*22 + 22*15x) cm2 Therefore 2*(15x*8x + 8x*22 + 22*15x) = 2506 or 15x*8x + 8x*22 + 22*15x = 1253 120x2 + 506x - 1253 = 0 so that x = -529/30 or 13/4 But x cannot be negative so x = 1.75. Therefore, volume = (15*1.75)*(8*1.75)*22 = 8085 cm3

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### WHAT IS -15X plus 12-8?

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