Final answer:
To find the distance between NYC and SF, we can set up an equation using the given information. Solving the equation, we find that the distance between the two cities is 8 miles.
Step-by-step explanation:
To find the distance between NYC and SF, we need to first find the time taken to fly from NYC to SF and the time taken to return from SF to NYC.
Let's assume the distance between the two cities is d miles. We have the following information:
Time taken to fly from NYC to SF = d/525 hours
Time taken to return from SF to NYC = d/600 hours.
Since it takes 40 minutes longer to fly from NYC to SF, we can set up the equation:
d/525 = d/600 + 40/60
Simplifying the equation:
12d = 10.8d + 9.6
1.2d = 9.6
d = 8
Therefore, the distance between NYC and SF is 8 miles.