Answer: The answer will be 28
Step-by-step explanation:
 
        
             
        
        
        
Answer:
10. 7n - 1 < -8
Isolate the variable, n. Do the opposite of PEMDAS. Treat the < as equal sign, what you do to one side, you do to the other. First, add 1 to both sides: 
7n - 1 (+1) < - 8 (+1)
7n < - 8 + 1
7n < - 7
Isolate the variable, n. Divide 7 from both sides: 
(7n)/7 < (-7)/7
n < -7/7
n < -1 
n < -1 is your answer.
11. 3 > -7v + 4v
Combine like terms, then isolate the variable, v. First, add -7v and 4v together. 
3 > (-7v + 4v) 
3 > (4v - 7v)
3 > (-3v)
Isolate the variable, v. Divide -3 from both sides. Note that since you are dividing a negative number, you must flip the sign: 
(3)/-3 > (-3v)/-3
3/-3 > v
-1 < v
v > -1 is your answer.
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79 divided by 10= 7
7x10= 70
79-70=9
Put a 0 beside the nine
Put the decimal beside the 7
10x9=90
90-90=0
Ur answer is 7.9
        
                    
             
        
        
        
Answer/explanation :
Step-by-step
 subtract 15-8 you have 7 then take
10- ur answer is 7 
10-7= 3
 
        
             
        
        
        
Answer:

Step-by-step explanation:
Given data :
Sample standard deviation, s = 15
Sample mean, 
n = 23
a). 98% confidence interval




∴ 
   
So, 98% CI is 


