Answer:

C is correct. 
Step-by-step explanation:
At a picnic, 
Number of adults is 3 times as number of children. 
Number of women is twice as number of men. 
Total number of men, women and children at the picnic be x
Let number of children be c
Let number of men be m 
Let number of women be w
# Number of women is twice as number of men, w = 2m 
# Number of adults is 3 times as number of children, w + m = 3c
       2m + m = 3c     (∴  w=2m )
                 c = m
Total number of men, women and children at the picnic be x
∵       c + m + w = x
      m + m + 2m = x
                     4m = x
Number of men, 
Hence, The total number of men will be  
 
        
             
        
        
        
The differences between he numbers are 19, so the answer is 58 + 19 = 71
        
             
        
        
        
Answer:
C
Step-by-step explanation:
5+2y+3z=5+3z+2yA
Intercambie los lados para que todos los términos de las variables estén en el lado izquierdo.
5+3z+2yA=5+2y+3z
Resta 5 en los dos lados.
3z+2yA=5+2y+3z−5
Resta 5 de 5 para obtener 0.
3z+2yA=2y+3z
Resta 3z en los dos lados.
2yA=2y+3z−3z
Combina 3z y −3z para obtener 0.
2yA=2y
Anula 2 en ambos lados.
yA=y
Divide los dos lados por y.
y
yA
 =  
y
y
  
Al dividir por y, se deshace la multiplicación por y.
A=  
y
y
  
Divide y por y.
A=1
 
        
             
        
        
        
Answer:
<em>Mrs. Adams will earn $3,120 of interest at the end of year 8.</em>
Step-by-step explanation:
<u>Simple Interest</u>
In simple interest, the money earns interest at a fixed rate, assuming no new money is coming in or out of the account.
We can calculate the interests earned by an investment of value A in a period of time t, at an interest rate r with the formula:

Mrs. Adams deposited an amount of A=$12,000 into an account that earns an annual simple interest rate of r=3.25%. We must find the interest earned in t=8 years. The interest rate is converted to decimal as:

The interest is then calculated:

Mrs. Adams will earn $3,120 of interest at the end of year 8.
 
        
             
        
        
        
This is very sloppy but u hope it helps