Answer:
x = 3, x = 15, x = 12, x = 1
Hope this helps :)
Step-by-step explanation:
1.) 4x - 1 = 2x + 5
     +1          +1
4x = 2x + 6
-2x   -2x
2x = 6
x = 3
2.) 3x - 5 = 2x + 10
+5          +5
3x = 2x + 15
-2x   -2x
x = 15
3.) 4x + 2 + 30 = 8 + 6x
     4x + 32 = 8 + 6x
            -8      -8
        4x + 24 = 6x
        -4x          -4x
           24 = 2x 
             x = 12
4.) 4( x - 1) + 5 = 2x + 3
      4x -4 + 5 = 2x + 3
       4x + 1 = 2x + 3
             -1          -1
            4x = 2x + 2
           -2x     -2x
             2x = 2
               x = 1
 
        
             
        
        
        
Answer:
c. 2,320miles
Step-by-step explanation:
29 divided by 1/4 = 116
116*20=2,320 
 
        
             
        
        
        
Answer:
The value of x would be 20
Step-by-step explanation:
To solve this triangle, we need to first note that all triangles have 180 degrees. So we can add these all together and set equal to 180. 
40 + 3x + 4x = 180
40 + 7x = 180
7x = 140
x = 20
 
        
             
        
        
        
Answer:
2
Step-by-step explanation:
From the graph, we obtain the trigonometric function as:

The corresponding cosine function have equation.

This function is of the form: 
where 
 is the amplitude.
Therefore the amplitude is |2|=2
The third choice is correct
 
        
             
        
        
        
A: Speed is Independent as it can be anything with no restrictions. Gas mileage is dependent as it relies on the value of speed for its value to be decided.
B: The first letter of speed is "S" so it can represent the variable. The first letter of mileage is "M" so the variable can be represented by that letter. It really can be any letter.
C: no context
D: no context