Answer:
When the two values are different
Step-by-step explanation:
Like in an inequality equation.
For example:

The answer would be anything greate than or equal to 30, but you would need to find x. The number line would be very useful
Hope this helps
 
        
             
        
        
        
Step-by-step explanation:
29,30,31 is three consecutive interger that add up to 90
 
        
                    
             
        
        
        
The mass of each book in grams if each box weighs 20 kilograms is 2000 grams
- Mass of each box = 20 kilograms
 - Total books in the box = 10 books
 
<h3>Converting kilograms to grams</h3>
1 kilograms = 1000 grams
20 kilograms = 20,000 grams
Mass of each book in grams = 20,000 grams / 10
= 2000 grams
Learn more about kilograms to grams:
brainly.com/question/9301317
#SPJ1
 
        
             
        
        
        
Answer:
Refer the attached figure.
Step-by-step explanation:
Given : System of equation 
To find : Which graph represents the solution to the given system?
Solution : 
Equation 
 plotted with a red line passing through (-1,0) and(0,4).
Equation 
 plotted with a blue line passing through (0,-3) and(0.75,0).
As their slopes are equal i.e. m=4.
So, the equation of lines are parallel.
There is no solution of the equations. 
Refer the attached figure of the equations.