Answer:
24
Step-by-step explanation:
75% of x = 18
75/100 * x = 18 (x =  total number of students)
solving 
x = 24
total number of students = 24
Checking:
75/100 * 24 = 18
 
        
             
        
        
        
The value of the <em>a, </em>in the provided quadratic equation for which Nancy found one solution as x=1 is 9.
<h3>What is the solution of equation?</h3>
The solution of the quadratic equation is the solution of the variable of the equation, for which the equation satisfies.
Nancy found that x=1 is one solution to the quadratic equation. The quadratic equation is,

For this equation, one solution is <em>x</em>=1. Put this value in the above equation to get the value of <em>a,</em>

Thus, the value of the <em>a, </em>in the provided quadratic equation for which Nancy found one solution as x=1 is 9.
Learn more about the solution of the equation here;
brainly.com/question/21283540
 
        
                    
             
        
        
        
Answer:
-8 - 36i
Step-by-step explanation:
 
        
             
        
        
        
Answer: -2
(-5)(-1)x=(10)(-1)
5x = -10
x = -2