Final answer:
To represent the number of each type of office visit the doctor may have in a week, we can use the following inequality: 10x + 20y + 4(60) ≤ 30. In this inequality, x represents the number of 10-minute appointments and y represents the number of 20-minute appointments.
Step-by-step explanation:
To represent the number of each type of office visit the doctor may have in a week, we can use the following inequality:
10x + 20y + 4(60) ≤ 30
In this inequality, x represents the number of 10-minute appointments and y represents the number of 20-minute appointments. We include 4(60) to account for the four hours of paperwork each weekday. Since there are 60 minutes in an hour, 4 hours is equal to 4(60) minutes. The inequality states that the total time spent on appointments and paperwork in minutes cannot exceed 30 hours in a week.