A manager schedules employees to cover evening shifts. There are 9 shifts on Monday, 11 on Tuesday, 13 on Wednesday, 13 on Thursday, 15 on Friday, 16 on Saturday, and 12 on Sunday. If each employee can work an average of 4.5 shifts, how many employees would the manager need to cover all evening shifts for the week

Add the number of shifts and divide by 4.5

20

19

16

To solve this problem, we need to calculate the total number of evening shifts for the week and then divide it by the average number of shifts that each employee can work.

First, let's find the total number of evening shifts for the week:
9 shifts on Monday +
11 shifts on Tuesday +
13 shifts on Wednesday +
13 shifts on Thursday +
15 shifts on Friday +
16 shifts on Saturday +
12 shifts on Sunday = 89 shifts in total

Next, we need to divide the total number of shifts by the average number of shifts each employee can work:
89 shifts / 4.5 shifts per employee = 19.78 (rounded up to the nearest whole number)

Therefore, the manager would need approximately 20 employees to cover all evening shifts for the week.