Answer:
its c 
3 : 7 
3/7
Step-by-step explanation:
 
        
             
        
        
        
Answer:1193 calories
Step-by-step explanation:
First you divide 8351 by 7 since there are 7 days in a week. You get 1193
 
        
             
        
        
        
Answer:
81.8%
Step-by-step explanation:
Mean = 
Standard deviation = 
Now we are supposed to find out what percent of the numbers fall between 35 and 50

Substitute the values 

Now for P(35<x<50)
Substitute x = 35


Substitute x = 50


So, P(-1<z<2)
P(z<2)-P(z<-1)
=0.9772-0.1587
=0.8185
= 
=81.8%
Hence  81.8% percent of the numbers fall between 35 and 50
 
        
             
        
        
        
Answer:
-1.70588235294
1. X3,    15x - 10y = 80   15x - 7y = 51
-17y = 29
2. 8 = 1/60 + a. 8 - 1/60 = 7.98333333333
   6 = 1/80 + b. 6 - 1/80 =  5.9875
                                          13.9708333333
3. I genuinely dont know sorry.
4. Pencil = $0.05. Pen = $1.05
Step-by-step explanation:
 
        
             
        
        
        
Answer:
C
Step-by-step explanation:
calculate like terms, then it is pretty simple from there.