Answer:
503 $1 tickets sold.
Step-by-step explanation:
Use two equations  
Let x = number of $1 tickets sold  
Let y = number of $1.50 tickets sold  
x + y = 739  
1x + (1.5)y = 857  
First equation ==> y = 739 - x  
Plug this into the second equation  
x + (1.5)(739 - x) = 857  
x + 1108.5 - 1.5x = 857  
- 0.5x = -251.5  
x = 503  
There were 503 $1 tickets sold.  
To find the number of $1.50 tickets, just plug this value of x into either one of the equations.  
(503) + y = 739       (739 - 503 = 236)
y = 236  
There were 236 $1.50 tickets sold.
 
        
             
        
        
        
6 orange. 42 total. 6/42 = 1/7 of the M&Ms are orange.
 
        
             
        
        
        
Answer:
Soil erosion is the natural process in which the topsoil of a field is carried away by physical sources such as wind and water. In this process, the soil particles are loosened or washed away in the valleys, oceans, rivers, streams or far away lands. 
It occurs when the impact of water or wind separates and removes soil particles, causing the soil to deteriorate. Soil deterioration and low water quality due to erosion and surface runoff have become severe problems worldwide.