Answer:
B. 32%
Step-by-step explanation:
16/50 = 32% lol
goodluck!
 
        
             
        
        
        
Answer:
12
Step-by-step explanation:
Since this is simple interest the equation will be P*T*R=I  T=time which is 1 year. P=money invested or borrowed  (aka princable) which is 400$. R=Annual rate is 3% per year and I= Interest after the number of years (aka answer) Hope this helps :)
 
        
                    
             
        
        
        
Answer:
{d,b}={4,3}
Step-by-step explanation:
 [1]    11d + 17b = 95
   [2]    d + b = 7
Graphic Representation of the Equations :
    17b + 11d = 95        b + d = 7  
  
 
Solve by Substitution :
// Solve equation [2] for the variable  b 
 
  [2]    b = -d + 7
// Plug this in for variable  b  in equation [1]
   [1]    11d + 17•(-d +7) = 95
   [1]    -6d = -24
// Solve equation [1] for the variable  d 
   [1]    6d = 24 
   [1]    d = 4 
// By now we know this much :
    d = 4
    b = -d+7
// Use the  d  value to solve for  b 
    b = -(4)+7 = 3 
Solution :
 {d,b} = {4,3} 
 
        
                    
             
        
        
        
Answer:
 .
. 
It means that 673 of 9 inch tiles are required to cover an area of 400 square feet, when spacing the tiles a quarter inch apart.
Step-by-step explanation:
Given:
The function relating number of 9 inch tiles required and area to cover is:

Now, plug in 400 for  to evaluate
 to evaluate  .
.

Therefore, Don required  673 of 9 inch tiles to cover an area of 400 square feet, when spacing the tiles a quarter inch apart.