Using proportions, it is found that they had traveled 245 miles when Jack fell asleep.
What is a proportion?
A proportion is a fraction of a total amount.
Jack slept through the last 65% of the trip, hence he fell asleep when 100 - 65 = 35% of the 700 mile trip had been traveled, so:
0.35 x 700 = 245.
They had traveled 245 miles when Jack fell asleep.
More can be learned about proportions at https://brainly.com/question/24372153
