This problem can be solved by creating an equation and solving it to find the dimensions of the rectangle.
Let's use the variable w to represent the width of the rectangle.
Then we can write the following expression to represent the length of the rectangle: 3w
Since the perimeter of a rectangle can be calculated by adding 2 times the length to 2 times the width , we can write the following equation for the perimeter (P) of the rectangle:
P = 2 • length + 2 • width
104 = 2 • (3w) + 2 • w
Multiply, combine like terms, and use inverse operations to determine the value of w:
104 = 6w + 2w
104 = =8w
104/8 = 8w/8
13 =w
The width of the rectangle is 13 feet.
The length will be 3 • 13 = 39 feet
Note: To verify, the perimeter is 13 + 13 + 39 + 39 =104 feet
