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Elisha plans to install a new ceiling in her basement. Each ceiling tile covers an area of 1.25 m2. The area of the basement ceiling is 50 m2. If Elisha has only 21 ceiling tiles, what percent of the ceiling can she tile?

 Dec 14, 2020
 #1
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She needs 50 m2 / 1.25 m2/tile = 40 tiles for a complete ceiling

 

21 tiles / 40 tiles   x  100% = ........... %   covered with only 21 tiles

 Dec 14, 2020
 #2
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21/40= % 52.5 kaplamistir.

 Dec 14, 2020

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