Kim has a job in which she makes $8 per hour plus tips. Yesterday, Kim made a total of $53, of which $13 was from tips. How many hours did she work yesterday?
The answer is 5 hours. Because if she works for $8 per hour and came home with $53, you subtract the 13 from the tips which leaves you with 40, and 40 divided by 8 is 5.
