Set up the equation: \( 8w = 48 \).
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- #### 785.4
- A rectangle has a length that is 3 times its width. If the perimeter of the rectangle is 48 meters, find the dimensions of the rectangle.
- Perimeter \( P = 2(w + 3w) = 8w \).
- Solving for \( w \), \( w = 48/8 = 6 \) meters.
- Length = \( 3 \times 6 = 18 \) meters.
- Therefore, the dimensions are 6 meters by 18 meters.
