Answer :
The total distance walked by the model is 1296 inches.
To solve this question, we need to convert the length of the runway from yards to inches. Here are the steps:
- First, understand that 1 yard (yd) is equal to 3 feet (ft).
- Second, know that 1 foot (ft) is equal to 12 inches (in).
Convert the runway length from yards to feet:
- The runway length is 18 yards. Since 1 yard = 3 feet:
- 18 yards × 3 feet/yard = 54 feet
Now, convert the length in feet to inches:
- Since 1 foot = 12 inches:
- 54 feet × 12 inches/foot = 648 inches
The model walks down the runway and back, so we need to double this distance:
- 648 inches × 2 = 1296 inches
Therefore, the runway model walked a total of 1296 inches on the runway.