Answer:

Step-by-step explanation:




 
        
             
        
        
        
Answer:
Step-by-step explanation:
So, the point of this is to make x the only thing on one side, so we can see what x is!
Okay so first subtract 8 on both sides...
5x= 25
Now we need to divide on both sides!
That equals...
x=5
So now we know that x=5!
Hope this helped!! :D
If you have any questions whatsover, make sure to comment!
 
        
                    
             
        
        
        
Answer:
1 hour 42 minutes
Step-by-step explanation:
Given: Speed of 1st trucker= 62 mph
            Speed of 2nd trucker= 66 mph
            Total distance need to cover to be in contact is 270 miles
            1st trucker start 1 hour ahead of 2nd trucker
Lets assume 2nd trucker take `x` hours to be in contact and 1st trucker take `(x+1)` hours.
We know, distance= 
1st trucker, distance 
 
                      ∴ 
2nd trucker, distance
                     ∴
Now, putting the values in an equation.

⇒ 
Opening the parenthesis to solve and subtracting both side by 62
⇒ 
∴ x=  = 1 hour 42 minutes
 = 1 hour 42 minutes
∴ It will take 1 hour 42 minutes to be able contact each other after first trucker leaves. 
 
        
             
        
        
        
This system has exactly one solution, because the two equation are linearly independent (i.e. one is not a multiple of the other).
We can explicitly find the solutions: from the first equation we deduce

Plug this value for x in the second equation:

Multiply both sides by 6 to get

Plug this value for y in the expression for x:

Since both a,b are not zero, both solutions are well defined.
 
        
             
        
        
        
I got ya!!!,
The answer is 3/11