Final answer:
The length of the new rug is approximately 10.67 feet.
Step-by-step explanation:
To find the length of the new rug, we need to first find the area of the original rug. The area of a rectangle can be found by multiplying its length and width, so the area of the original rug is 6 feet x 8 feet = 48 square feet. Since the new rug covers twice as much area, its area will be 48 square feet x 2 = 96 square feet.
Next, we need to find the width of the new rug. The new rug is 1.5 times as wide as the original rug, so its width will be 1.5 x 6 feet = 9 feet.
Finally, we can use the area and width of the new rug to find its length. Divide the area of the new rug by its width: 96 square feet ÷ 9 feet = 10.67 feet. Therefore, the length of the new rug is approximately 10.67 feet.