The perimeter of a rectangle is 176 m. The length is 4 m less than three times the width. Find the dimensions of the rectangle.

Length = 65 m

Width = 23 m

Step-by-step explanation:

Width = w

Length = 3w - 4

Perimeter of rectangle = 176 m

2*(length + width) = 176

2*( 3w - 4 + w ) = 176

2* ( 4w - 4) = 176

2*4w - 2*4 = 176

      8w - 8 = 176    { add 8 to both sides}

           8w = 176 +8

           8w = 184

        8w/8 = 184/8

              w = 23 m

Length = 3w - 4

            = 3*23 - 4

            = 69 - 4

Length = 65 m

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