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Susan plans to paint a wall in her room. Her wall is three times as wide as it is high. The wall has an area of 108 ft2 . What are the dimensions of the wall?

Respuesta :

ronhagrid310

Answer:

a: wide

b: high

b = 3a

=> a x 3a = 108

=> a = 6

=> b = 3a = 18

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