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A rectangular piece of land requires 157 1/2 meters of fencing. If the length is 30 m less than the width, find the dimensions.

Respuesta :

2L+2W=157.5
L=W-30
2(W-30)+2W=157.5
2W-60+2W=157.5
      +60           +60
4w=217.5
 W=54.4(.37 rounded to nearest tenth)
  L=24.4

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