Answer:
- 3
Step-by-step explanation:
let n be the number , then
3n + 4 = n - 2 ( subtract n from both sides )
2n + 4 = - 2 ( subtract 4 from both sides )
2n = - 6 ( divide both sides by 2 )
n = - 3
The number is - 3
 
        
             
        
        
        
Answer:
Step-by-step explanation:
First, write an equation. 55x+40=190. 
X represents the hours the electrician works. The 55 represents the $55 that she charges for each hour she works. The +40 for the $40 that was the price just to come to your house. The 190 is the total cost. Now, solve that equation.
55x+40=190
55x=150
x=2.72727272...
So the answer is 2.727 hours. It can be rounded as needed or turned into a decimal, 2 8/11.
 
        
             
        
        
        
Answer:
The average rate of movement along the San Andreas Fault is between 30mm and 50mm per year over the last 10 million years. If current rates of movement are maintained Los Angeles will be adjacent to San Francisco in approximately 20 million years.
Step-by-step explanation:
 
        
             
        
        
        
If h=4, then 5(4)+7= 27. Using PEMDAS, do multiplication first, so 20, then add the 7.
        
                    
             
        
        
        
Answer:
40% (option C)
Step-by-step explanation:
To find the answer, divide the number of events played in other towns by the total number of performances the band did. 
Applying this: 
12 / (18 + 12) = 
12 / 30 = 
2 / 5 = 
40%
The answer is C, 40%