Question

A nurse worked from 8:15 A.M. until 11:30 A.M. and

12:30 P.M. until 4:15 P.M. Estimate the total number
of hours worked
A 7 hr
B 7 hr 30 min
C 7 hr 45 min
D 8 hr

Answer 1

To estimate the working hours, the morning and afternoon shifts are each calculated. The morning shift is 3 hours and 15 minutes, the afternoon is 3 hours and 45 minutes, which totals 7 hours when combined.

Step-by-step explanation:

To estimate the total number of hours worked by the nurse, we need to calculate the hours worked during both the morning and the afternoon shifts.

In the morning, from 8:15 A.M. until 11:30 A.M., the nurse worked:

1. 11:00 A.M. - 8:15 A.M. = 2 hours 45 minutes
2. 11:30 A.M. - 11:00 A.M. = 30 minutes
3. So, total morning hours = 2 hours 45 minutes + 30 minutes = 3 hours 15 minutes.

In the afternoon, from 12:30 P.M. until 4:15 P.M., the nurse worked:

1. 4:00 P.M. - 12:30 P.M. = 3 hours 30 minutes
2. 4:15 P.M. - 4:00 P.M. = 15 minutes
3. So, total afternoon hours = 3 hours 30 minutes + 15 minutes = 3 hours 45 minutes.

Adding both the morning and afternoon hours:

1. 3 hours 15 minutes + 3 hours 45 minutes = 7 hours (total hours) + 0 minutes (because 15+45=60, which is 1 hour)

Hence, the nurse worked for a total of 7 hours.

Answer 2

the answer is a because 8:15 am to 11:30 am is 3 hours and 15 minutes. 12:30 pm to 4:15 pm is 3 hours and 45 minutes. 45 mins + 15 mins = 60 mins which is an hour. 3 hrs + 3 hrs + 1 hr = 7 hrs