Answer:
y=2/3x+4.3
Step-by-step explanation:
y=mx+c
(5-3)/(1--2)
2/3= gradient
y=2/3x +c
5=2/3(1)+c
-2/3
4.3=c
 
        
             
        
        
        
All i know is that the equation of a straight line  is y=mx+c .......where m= gradient and c= the y intercept
        
             
        
        
        
Answer:
y = 20°
x = 35°
Explanation:
Equation's:
    1) 2y + x + 105° = 180°
    2) 3x + x + 2y = 180°
Make y subject in equation 2
3x + x + 2y = 180
4x + 2y = 180
2y = 180 - 4x
y = 90 - 2x
Insert this into equation 1
2(90 - 2x) + x + 105° = 180°
180 - 4x + x + 105 = 180
-3x = -105
x = 35°
Find value of y
y = 90 - 2x
y = 90 - 2(35)
y = 20°
 
        
                    
             
        
        
        
Answer:
72 
Step-by-step explanation:
 
        
                    
             
        
        
        
Elliot because it said that he had 638 fewer than him the Ravi gave him 352 so that would make Elliot have more