Final answer:
The length of the rectangle is 3 yards. To find the length of the rectangle, set up the equation: 2x + 2(2x + 6) = 30. Simplify and solve for x to find the length.
Step-by-step explanation:
To find the length of the rectangle, we can set up the following equation:
2x + 2(2x + 6) = 30
Where x represents the length of the rectangle. We can simplify and solve for x:
2x + 4x + 12 = 30
6x + 12 = 30
6x = 18
x = 3
The length of the rectangle is 3 yards.