Answer:7pi\4
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
The answer is (x,y)=(-3,-2)
Step-by-step explanation:
I used the comparison method because I dont know what type of method you needed, sorry. The methods I know would be: the Comparison Method (what I used), the Substitution Method, Elimination Method,Inverse Matrix Method, Cramer's Rule, and the Gauss-Jordan Method.
You can also rewrite this equation to 3x-y=-7 and x-y=-1.
I'm sorry, I dont know what kind of answer you're looking for. I really hope this helps.
 
        
             
        
        
        
Answer: 6,800,000 people
Step-by-step explanation:
We are looking for the number of people, not the percentage of wealth that has been made up by the people.
2% of the people are the richest in the United States, and there are 340,000,000 people in total in the United States.
2% = 0.02
340,000,000 * 0.02 = 6,800,000
I hope this was helpful! :)
 
        
             
        
        
        
Answer:
   [0, 6) ∪ [65, ∞)
Step-by-step explanation:
Ages under 6 will be in the interval [0, 5], or in the interval [0, 6), as you may wish.
Ages 65 or older will be in the interval [65, ∞).
The union of these two intervals is ...
   [0, 6) ∪ [65, ∞)
 
        
             
        
        
        
3 + x/2 = 7
x = (7-3)*2 = 8 = the number