Sent a picture of the solution to the problem (s).
 
        
        
        
Answer:
Step-by-step explanation:
Hi there!
Let the smaller number be x and the larger number be 2x+1.
According to the question,
The sum of the numbers is 20 less than three
times the larger. 
i.e x + (2x+1)= 3*(2x+1) - 20
or, x + 2x +1 = 6x + 3 -20
or, 3x + 1 = 6x - 17
or, 3x = 18
or x= 18/3
x = 6
And 2x+1 = 2*6+1 = 13.
Therefore the smaller number is 6 and larger number is 13.
Hope it helps!
 
        
             
        
        
        
Answer:
See below. 
Step-by-step explanation:
Well first, we need to find the weight of the table. We know that 8 boxes weighs a total of 240kg (since each box weights 30kg). Thus, we can conclude that the table weighs 70kg by doing 310-240=70. 
Now, we can write our function. Let  equal the amount of boxes.
 equal the amount of boxes. 
The table is a set weight, so that would be our constant. 
Thus, we will have: 

30x represents the weight each box of book adds to the total. One box equals 30kg, 2 boxes equal 60kg, etc. 
The 70 represents the unchanging weight of the table. 
In terms of W(x), it will be: 
