Verified Answer :

5280/3=1760 1760·2=3520. Final answer being 3520

Answer: The course is 3520 feet long.

Step-by-step explanation:

Given : Speed skiing takes place on a course that is \(\dfrac{2}{3}\) mile long .

We know that one mile = 5280 feet

Then,  \(\dfrac{2}{3}\text{ mile}=\dfrac{2}{3}\times5280=3520\)

It means the length of the course = 3520 feet.

Hence, the course is 3520 feet long.