Answer: 3,750 miles
Step-by-step explanation:
Route takes him 125 miles each way so in a day he travels:
= 125 + 125 
= 250 miles 
He made 15 roundtrips so total miles is:
= 15 * 250
= 3,750 miles
 
        
             
        
        
        
You want to do to one side the same thing you do to the other side.
In order to get the n by itself you divide the 25n by 25. But in order to not change the answer you need to do the same to the 70.

so n=

 which can be reduced to 

so n=
 
 
        
        
        
Answer:
3(x/4) - 1/2 (x/10) or you can just do 0.7x but I don't think that counts as an expression, so just put 3(x/4) - 1/2 (x/10).
Step-by-step explanation:
 
        
             
        
        
        
Answer:
 (8 / x) + (21 / y) 
Step-by-step explanation:
Given that:
Average driving speed = x mph
Miles driven to work = 8 mile
Miles by train to work = 21 miles
Average train speed = y
Total time taken to get to work. :
Recall : time taken = distance / speed
Hence,
Time taken =) total distance / average driving speed)
Total time taken = (8 / x) + (21 / y) hours 
Total time taken = (8 / x) + (21 / y) hours
 
        
                    
             
        
        
        
21 divided by 3 is 7.
So, that'll result in 7 people in each van.