Olympiad, the square living room is 12 meters long, if a square in the middle is covered with pure w

Updated on Living room 2024-08-27
2 answers
  1. Anonymous users2024-01-24

    A: The area of chemical fiber carpet:

    (12 12) 250 22455] (250 35) = 63 (square meters), pure wool carpet area: 12 12 63 = 81 (square meters), its side length is 9 meters, the width of chemical fiber carpet:

    12 9) 2 = m) = 15 (dm).

  2. Anonymous users2024-01-23

    15.If the width of the chemical fiber carpet spread on the periphery is a meter, there is.

    12-2a) 2*250+35*[12 2-(12-2a) 2]=22455, the solution is a = meter, that is, 15 decimeters.

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