"Six more than five" is also 5 + 6. When you add 5 and 6, you get 11.
Answer:
The answers are 10y - 10r and 18
Step-by-step explanation:
10(y - r)
10y - 10r
___________________
2(3 + 6)
6 + 12
18
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Answer:
The 95% confidence interval is 
A 95% level of confidence mean that there is 95% chance that the true population mean will be in this interval
Step-by-step explanation:
From the question we are told that
The sample size is 
The mean is 
The standard deviation is 
Given that the confidence level is 95% then the level of significance is mathematically represented as

=> 
=> 
Next we obtain the critical value of
from the normal distribution table , the value is

Generally the margin of error is mathematically represented as

substituting values


The 95% level of confidence interval is mathematically represented as

substituting values


The 95% level of confidence mean that there is 95% chance that the true population mean will be in this interval

Here's the solution ~
Area of floor is ;


Area covered by rug is ;

So, the percentage of floor covered by rug is ~



