Last Sunday, the Humane Society had a 3-hour adoption clinic. During the week the clinic is open for 2 hours on days when volunteers are available. If the Humane Society was open for a total of 9 hours last week, how many weekdays was the clinic open?

3 Weekdays

Step-by-step explanation:

On Sunday, the clinic was opened for 3 hours.

Total number of hours the Adoption Clinic was opened last week=9

It means therefore that:

Hours Opened on Weekend+Hours opened on Weekdays = 9

3+Hours opened on Weekdays = 9

Hours opened on Weekdays = 9-3=6

During the week the clinic is open for 2 hours on days when volunteers are available.

Number of Weekdays the Clinic was opened therefore is given as:

6hours/2 hours per day=3 days

The clinic was opened for 3 weekdays.