document.write( "Question 1197556: The floor of a building is covered with square vinyl tiles. The floor is in the shape of a trapezoid with an altitude of 32-ft and bases of 40-ft and 50-ft. One carton of tiles has a coverage of 45-sq.ft. Allowing for 5% waste, how many cartons of tile are purchased for the job? Round your answer to the nearest whole carton of tile. \n" ); document.write( "

Algebra.Com's Answer #830867 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "The trapezoid area is *h = = 540ft^2.\r\n" );
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document.write( "Allowing 5% waste, the required area = 540*1.05 = 567 ft^2.\r\n" );
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document.write( "The number of cartoons required:  567 ft^2/ 45 ft^2 = 12.6.\r\n" );
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document.write( "Since it is greater than 12, we    round to the closest    integer number, which is 13.\r\n" );
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document.write( "ANSWER. 13 cartoons tiles.\r\n" );
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