Answer:
6.67 feet long
Step-by-step explanation:
The drawing scale is 3 inches per foot. If we have the amount of inches in length, we can determine the number of feet the actual tractor tailer is. We can do this by dividing 20 inches by 3 inches per foot to get the answer in feet:
[tex]=(1/3)\cdot{20}=20/3=6.67[/tex]
The actual tractor trailer is 6.67 feet long from a scale of 3 inches per foot.