Answer:
15 Smoothies were made yesterday
Step-by-step explanation:
30 * 50% = 15
 
        
                    
             
        
        
        
 negative exponent means how many times to divide by the number. Example: 8-1 = 1 ÷ 8 = 1/8 = 0.125. Or many divides: Example: 5-3 = 1 ÷ 5 ÷ 5 ÷ 5 = 0.008.
 hope it helps
 
        
             
        
        
        
Answer:
-2, 5.5
The best way to do this is to draw a graph.
 
        
                    
             
        
        
        
Simplifying:  4x + 52 + 8x + -10 = 90  
Reorder the terms:  52 + -10 + 4x + 8x = 90  
Combine like terms: 52 + -10 = 42    42 + 4x + 8x = 90
Combine like terms: 4x + 8x = 12x    42 + 12x = 90  
42 + 12x = 90
Solving for variable 'x'.  
Move all terms containing x to the left, all other terms to the right.  
Add '-42' to each side of the equation.  42 + -42 + 12x = 90 + -42    Combine like terms: 42 + -42 = 0
0 + 12x = 90 + -42  
12x = 90 + -42
Combine like terms: 90 + -42 = 48  
12x = 48
Divide each side by '12'.  x = 4     from https://www.geteasysolution.com/4x+52+8x-10=90