S=d/t     ⇒d=s*t
s=speed
d=distance
t=time
The first train :
d=x
x=70 miles/h*t                             ⇒   x=70t  (1)
The second train
d=360 miles - x
360 miles - x=80 miles/h*t          ⇒360-x=80t   ⇒ x=360-80t   (2)
therefore, with the equations (1) and (2) we have a systeme of equations:
x=70t
x=360-80t
we can solve this system of equations by equalization method.
70t=360-80t
70t+80t=360
150t=360
t=360/150=2.4     (≈2 hour  24 minutes)
Answer:  the first train meet with the second train in 2 hour 24 minutes. 
        
                    
             
        
        
        
Answer:
36p+4
Step-by-step explanation:
 
        
                    
             
        
        
        
Hello!
Let 'a' stand for adult tickets and 'c' for children tickets. 
a + c = 15 
(Both adult and children tickets make up a total of 15 tickets). 
30a + 20c = 330
a = 3
c = 12
A N S W E R: 
William bought 3 adults tickets and 12 children's tickets. 
        
             
        
        
        
The first one is the answe<span>r.</span>
        
             
        
        
        
Answer:
○ 
Step-by-step explanation:
When you plug these coordinates into this equation, they will be confirmed as <em>false</em>.
I am joyous to assist you anytime.