Answer:
120 miles:4 hours
Explanation:
Johns made
two 120 mile trips
there are a total of 2 120 mile trips
his second trip in one hour less time than his first trip. The total time for the two trips was 9 hours
9 hours = 4 hours + 5 hours (5 hours - 4 hours = 1)
What was his average rate, in miles per hour, for the second trip?
120 miles:4 hours simplify to 30 miles:1 hour