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antonio9768
20.07.2020 •
Mathematics
The mean salary for the 20 workers in company A is $90 per week, whereas in company B the mean salary for its 30 workers is $85 per week. If the two companies merge, what is the mean salary for the 50 employees of the new company?
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Ответ:
The mean salary for the 50 employees of the new company = $87
Step-by-step explanation:
Mean for any n set of number is \
mean = sum of n terms/ n
For company A
The mean salary for the 20 workers in company A is $90 per week,
mean = $90
n = 20
using above formula
90 = sum of salary of 20 workers/20
sum of salary of 20 workers = 90*20 = $1800
For company B
The mean salary for the 30 workers in company A is $85 per week,
mean = $85
n = 30
using above formula
85 = sum of salary of 30 workers/30
sum of salary of 30 workers = 85*30 = $2,550
If two companies merge
Total salary for all the 50 workers for both the company =
sum of salary of 20 workers in company A + sum of salary of 30 workers in company B = $1800 + $2550 = $4350
Mean salary of 50 workers will be
n= 50
mean = Total salary of 50 workers/50
mean salary of 50 workers = 4350/50 = 87
The mean salary for the 50 employees of the new company = $87
Ответ:
brown and green
Step-by-step explanation:
10 (brown) / 6 (green)
if divided by 2 equals 5:3