Answer:
150 miles
Explanation:
We are told that Jayden slept 15% of the way through the trip.
We are also told that the trip was 1000 miles long.
All we have to do is find 15% of 1000 miles to find when Jayden fell asleep. 15% of 1000 miles is:
= 150 miles
Hence, Jayden fell asleep after they had traveled 150 miles.