Answer:
6 hours
Step-by-step explanation:
Suppose Madison spent x hours on her social project,
then the number of hours spent on other project will be 1/3 of x=x/3
Total hours spend on all projects will be the addition of hours spent on social project and hour spent on other project, i.e
x + x/3 = 4x/3
It si given that this is 8 hours, therefore
4x/3=8
Multiplying both sides by 3:
4x=24
Dividing across board by 4:
x= 6 hours
 
        
             
        
        
        
Answer:

Step-by-step explanation:
Given
 -- of the roadworks
 -- of the roadworks

Required
Determine the speed
In this case:


<em></em> <em> --- approximated</em>
<em> --- approximated</em>
 
        
             
        
        
        
Answer:
C
Step-by-step explanation:
Becuz 9+9=17, which is the sum of 9 and 9.
 
        
                    
             
        
        
        
Answer:
sorry dont know 
Step-by-step explanation:
30 oite 904-=
 
        
             
        
        
        
To find the mean absolute deviation, you have to find the mean first.
1+1+2+2+2+4=12
12 divided by 6 numbers=2         The mean of that is two
Next, you have to find the amount the original numbers are away from the mean.
1= 1 away from 2               2=0 away from 2               4=2 away from 2
You should get: 1,1,0,0,0,2              Next, you have to find the mean of the new set of numbers.    1+1+0+0+0+2=4
4 divided by 6= 2/3
The mean absolute deviation is 2/3