Luis is driving 80 miles in 2 hours. How far will he go in 15 minutes? Let's be accurate as possible.
Luis drives 80 / 2 = 40 miles in 1 hour. Since there are 60 minutes in 1 hour, then he drives 40 / 60 = 2 / 3 of a mile in 1 minute. So in 15 minutes, he will go 2 / 3 x 15 = 10 miles far.
The answer: 10.