Answer:
The length of the longer piece is 35 feet.
Step-by-step explanation:
Let the length of the longer piece is x
Hence, length of the shorter piece is 3x
Now, the length of the rope is 140 ft. Thus, we have the equation
\(x+3x=140\)
Add the like terms. \(x+3x=4x\)
\(4x=140\)
Divide both sides by 4
\(x=35\)
Therefore, the length of the longer piece is 35 feet.