Answer:
(B) 3n - 11
Step-by-step explanation:
(2n + 5) - (3n + 7) + (4n - 9) = 2n + 5 - 3n - 7 +4n - 9 = 3n  - 11
 
        
             
        
        
        
Answer:
(-2,-2) and (3,4) 
Step-by-step explanation:
Edge 2020
 
        
                    
             
        
        
        
Answer:
11.2 miles
Step-by-step explanation:
We can create a triangle from the information given. 
<u>We can call the starting point (0,0) in the coordinate system.</u>
- <u>10 mi east</u> - 10 miles to the right. then,
- <u>5 mi north</u> - 5 miles above
<em><u>See the attached picture. The direct distance is labeled as x.</u></em>
Now we need to find x using pythagorean theorem.
Pythagorean Theorem = leg²+leg²=hypotenuse²
Solving for x:

<em>Rounding to nearest tenth, we have </em><em>11.2 miles</em>
 
        
                    
             
        
        
        
Answer:
5/12 barrel/hour
Step-by-step explanation:
  Type this as a fraction:
   (1/6) barrel
--------------------
   (2/5) hours
Division by 2/5 is equivalent to multiplication by 5/2:
 1                5
--- barrel * -------------- = 5/12 barrel/hour
 6                2  hours
Alternatively, this problem could be done using decimal fractions:
0.1667 barrel
-------------------- = 0.416666 barrel/hour  =  5/12 barrel/hour
 0.4 hours 
 
        
             
        
        
        
Answer:
X=-1, y=4
Step-by-step explanation:

by using eliminating property

by substitution
X=-1