Answer:
Because the airline allows each suitcase to hold up to 50 pounds, and it doesn't force them to hold exactly 50 pounds
 
        
                    
             
        
        
        
Step-by-step explanation (Question 1):        
<u>Step 1: (Question 1): Subtract x from both sides.</u>
5x+3=x+13
5x+3−x=x+13−x
4x+3=13
<u>Step 2: (Question 1): Subtract 3 from both sides.</u>
4x+3−3=13−3
4x=10
<u>Step 3: (Question 1): Divide both sides by 4.</u>
4x/4 = 10/4
FIRST ANSWER: x = 5/2
Step-by-step explanation (Question 2):      
<u>Step 1: (Question 2): Multiply by LCM</u>
15x^2 - 6 = x
<u>Step 2: (Question 2): Solve 15x^2</u>
15x^2 - 6 = x: 
x = 2/3
x = -3/5
<u>Step 3: (Question 2): Solve</u>
ANSWER: x=0.666667 or x=−0.6
See Attachment 1 for question 1 steps (FULL)
See Attachment 2 for question 2 steps (FULL)
Answer:    
1)   x = 5/2
2)  x=0.666667 or x=−0.6
  
Hope this helps.
 
        
                    
             
        
        
        
It is just the difference between the signs
        
             
        
        
        
Answer:
D
Step-by-step explanation:
∠1 + ∠2  =  180   {Supplementary angles}
6x + 15 + 3x + 3 = 180
6x + 3x + 15 + 3 = 180       
Combine like terms
9x + 18 = 180
Subtract 18 from both sides
9x = 180 - 18
9x = 162
x = 162/9
x = 18
∠2 = 3x +3 
      = 3*18 + 3
      = 54 + 3
∠2 = 57°
 
        
                    
             
        
        
        
Okay this is what i got it might be wrong but i did it and then looked it up to make sure i was right & it showed the same answer!!
3.55 * 1.6= 5.68!!