Answer:
the second car is 75 miles longer than the first car for 5 hours
Explanation:
First we need to know the distance each one traveled in 5 hours
the first one travels 40 miles in one hour
1 h = 40 mi
1h * 5 = 40mi * 5
5h = 200 mi
the second one travels 55 miles in one hour
1 h = 55 mi
1h * 5 = 55mi * 5
5h = 275 mi
so the first one traveled 200 miles and the second 275 miles
if 275 we have 200 left, we will get how many more miles the second car made in 5 hours
275mi - 200mi = 75mi