Answer:
   225
Step-by-step explanation:
Let h represent the number of hamburgers sold. Then h-61 is the number of cheeseburgers sold. The combined total is ...
   h +(h -61) = 389
   2h = 450 . . . . . . add 61
   h = 225 . . . . . . . divide by 2
There were 225 hamburgers sold on Thursday.
 
        
             
        
        
        
 53.24-34.99=18.25
$1 will buy 20 minutes of long distance calling
x$18.25 = 365 minutes @ $34.99
$132-$34.99=$97.01
20x97=1,940 minutes
minimum=365 minutes
maximum=1,940 minutes
Hope this helps. 
 
        
                    
             
        
        
        
Answer:
a. z = 2.00
Step-by-step explanation:
Hello!
The study variable is "Points per game of a high school team"
The hypothesis is that the average score per game is greater than before, so the parameter to test is the population mean (μ)
The hypothesis is:
H₀: μ ≤ 99
H₁: μ > 99
α: 0.01
There is no information about the variable distribution, I'll apply the Central Limit Theorem and approximate the sample mean (X[bar]) to normal since whether you use a Z or t-test, you need your variable to be at least approximately normal. Considering the sample size (n=36) I'd rather use a Z-test than a t-test.
The statistic value under the null hypothesis is:
Z= X[bar] - μ  = 101 - 99 = 2
 σ/√n 6/√36
I don't have σ, but since this is an approximation I can use the value of S instead.
I hope it helps!
 
        
             
        
        
        
Answer:
one=12 sencond=1
Step-by-step explanation:
x=12
then,y=3
after that
first NUM,=12
second NUM=1
 
        
             
        
        
        
Wah..I need to ask my bro to answer this.. Brb