My question is: If the normal hours of operation of Jean's business are 4 pm to 10p every day Monday through Friday, and from 6 pm to 10 pm on weekends, how many hours is the business open in a week? Your thoughts:
First, we find the number of hours per weekday by subtracting the smaller number time from the larger one, finding 10 - 4 = 6 hours per weekday. As there are 5 weekdays, this means the business is open 6 * 5 = 30 hours a week on the weekdays. Then we find out the amount of time the business is open on a weekend day, using the same process as we did with the weekdays, finding Jean's business is open 10 - 6 = 4 hours each weekend day. Since there are two weekend days, this means they are open 4 * 2 = 8 hours on the weekends. We add these two totals together to find that 30 + 8 = 38 hours per week. The final answer: 38.