20t +15t+90+25t-75=60t+15
60t+15/3=20t+5 as the average
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If an employee earns 200 dollars for 14 hours work, that means this person gets approximately 14 dollars and 29 cents per every hour.
Thus, in 35 hours, you can multiply 14.29 by 35 to get about 500 dollars.
In 35 hours, the employee will earn 500 dollars.
Answer: a. n= 1068
b. n= 164
Step-by-step explanation:
The formula to find the sample size :

, where p=prior population proportion , z* = critical z-value and E = Margin of error.
Here , let p=proportion of computers that use a new operating system.
Given : Confidence level = 95%
i.e. z* = 1.96 [by z-table]
Margin of error : E = 3% =0.03
a. If p is unknown , then we assume p=0.5
Then, 
i.e. n= 1068
b. p=0.96
Then, 
i.e. n= 164.
Answer:
11x+1x + 2+ 2
Step-by-step explanation:
Answer: 805 tens would be 8050
Step-by-step explanation: