To determine the length of the model of the swordfish using the scale of 1 inch = 2 feet, you first need to know the actual length of the swordfish.
Assuming an average swordfish is around 10 to 11 feet long, let's calculate:
If the actual length is 10 feet:
- Convert feet to inches: 10 feet is \(10 \times 12 = 120\) inches.
- Using the scale \(1 , \text{inch} = 2 , \text{feet}\), divide the actual length in feet by 2: \[ \text{Model Length} = \frac{10 , \text{feet}}{2} = 5 , \text{inches} \]
If the actual length is 11 feet:
- Convert feet to inches: 11 feet is \(11 \times 12 = 132\) inches.
- Using the scale \(1 , \text{inch} = 2 , \text{feet}\), divide the actual length in feet by 2: \[ \text{Model Length} = \frac{11 , \text{feet}}{2} = 5.5 , \text{inches} \]
Since the options given are 1/2 inch, 1 inch, 4 inches, and 5 inches, the length that fits is:
- For 10 feet, the model length is 5 inches.
Thus, the correct answer is D. 5 inches.