Answer:
3 and 47
7 and 43
19 and 31
Step-by-step explanation:
Prime numbers up to 50: 
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47
Therefore,
3 + 47 = 50
7 + 43 = 50
19 + 31 = 50
 
        
             
        
        
        
I think all you need to do is rise/run, in this case, 2420÷6050=0.4=40%
        
             
        
        
        
Answer:
<u>b(n) = -11 + (n-1)*8</u>
<u></u>
Step-by-step explanation:
Let n be the sequence number, with n=1 the first number b(1) -11
The sequence changes by +8 each step.
<u><em>b(1)</em></u><em>   -11</em>          + 8 =   -3
<u><em>b(2)</em></u><em>   -3</em>          + 8 =    5
<u><em>b(3)</em></u>   <em> 5 </em>         + 8 =   13
<u><em>b(4)</em></u><em> </em> <em>13</em>
b(1) = -11
b(2) = -3.   or b(1) + 1*8
b(3) =  5,    or b(1) + 2*8
b(4) =  13,   or b(1) + 3*8
We note that each step adds a multiple of 8 to the initial value of -11.  This can be stated as (n-1)*8
The formula for this sequence would be b(n) = b(1) + (n-1)*8
<u>b(n) = -11 + (n-1)*8</u>
Check:  Does n=3 return the value of 5?
b(n) = -11 + (n-1)*8
b(3) = -11 + ((3)-1)*8
b(3) = -11 + (2)*8
b(3) = -11 + 16
b(3) = 5   <u><em>YES</em></u>
 
        
             
        
        
        
Answer:
THIS MAKES NO SENCE
Step-by-step explanation:
 
        
                    
             
        
        
        
I don't understand what your asking