Answer:
10 visors 
Step-by-step explanation:
Make an equation 
Each visor, v costs $6, and there is a $5 fee regardless of the amount of visors purchased. This must be equal to $65 
6v+5=65 
Now, solve for v 
Subtract 5 from both sides 
6v=60 
Divide both sides by 6 
v=10 
You can buy 10 visors 
 
        
                    
             
        
        
        
Answer:
The number of nickels is 45 and the number of dimes is 72.
Step-by-step explanation:
Let
x ----> number of nickels
y ----> number of dimes
Remember that


so
 ------> equation A
 ------> equation A

 ------> equation B
 ------> equation B
<em>Solve the system by substitution</em>
we have
 ------> equation A
 ------> equation A
 ------> equation B
 ------> equation B
Multiply both equations by 100 both sides
 ---->
 ----> --> equation C
 --> equation C
 ----> equation D
 ----> equation D
substitute equation C in equation D

solve for y




Find the value of x




<em>Alternative Method</em>
Solve the system by graphing
Remember that the solution is the intersection point both graphs
using a graphing tool
the solution is the point (45,72)
therefore
The number of nickels is 45 and the number of dimes is 72.
 
        
             
        
        
        
Answer:
To find the sum of an infinite geometric series having ratios with an absolute value less than one, use the formula, S=a11−r , where a1 is the first term and r is the common ratio.
 
        
             
        
        
        
4/16 in simplest form is 1/4 because 4 goes into 4 1 time and 4 goes into 16 4 times
        
                    
             
        
        
        
Not a solution I believe.