Let x = roller coaster ticket
let y = boat ride ticket
x + y = 10
4x + 3y = 37
x = 10 - y
4x + 3y = 37
4(10-y) + 3y = 37
40 - 4y + 3y = 37
-y = 37 - 40
-y = -3
y = -3/-1
y = 3
x = 10 - y
x = 10 - 3
x = 7
x = 7 ; y = 3
4x + 3y = 37
4(7) + 3(3) = 37
28 + 9 = 37
37 = 37 
        
             
        
        
        
1000 grams = 1 kilograms.....
the average mass of cat is 5000 grams, so if you convert this into KG then the answer would be 5 kg because if 1000*5 = 5000 which equals to 5 kg.....hope this helps :)
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
<u>Change in one year:</u>
- 330 - 2(145) = 330 - 290 = 40
<u>Change after 5 years:</u>
 
        
             
        
        
        
The equation x = 180 - (31 + 40) can be used. Because the angles are in a straight line ad straight line equals 180 degrees
        
                    
             
        
        
        
D because you have to use absolute value to solve.