Joes electric made 19 customer calls last week and 24 calls this week, How many calls must be made next week in order to maintain an average of at least 21 calls per week for the three week period?
solve for x ...
(19+24+x)/3 = 21
To find out how many calls must be made next week to maintain an average of at least 21 calls per week for the three-week period, we need to calculate the total calls made in the three weeks and divide it by 3 to find the average.
First, let's calculate the total calls made in the first two weeks:
Total calls made = Number of calls made in the first week + Number of calls made in the second week
Total calls made = 19 calls + 24 calls
Total calls made = 43 calls
Now, let's calculate the minimum number of calls needed in the third week to maintain an average of at least 21 calls per week:
Minimum total calls needed = Average calls per week * Number of weeks
Minimum total calls needed = 21 calls/week * 3 weeks
Minimum total calls needed = 63 calls
To find out how many calls must be made next week, subtract the total number of calls made in the first two weeks from the minimum total calls needed in the three weeks:
Calls needed next week = Minimum total calls needed - Total calls made in the first two weeks
Calls needed next week = 63 calls - 43 calls
Calls needed next week = 20 calls
Therefore, Joe's Electric must make at least 20 calls next week to maintain an average of at least 21 calls per week for the three-week period.