Answer:
Step-by-step explanation:
take (1,3) and (9,7)
slope=(7-3)/(9-1)=4/8=1/2
 
        
             
        
        
        
Answer:
A = 9
B = 2
C = 5
D = 1
E = 8
F = 7
Step-by-step explanation:
A 9 B 2 C 5 = 16
D 1  E 8 F 7 = 16
10   10    12
BxC (2x5) = 10
A+D (9+1) = 10
 
        
             
        
        
        
Answer:
17/13
Step-by-step explanation:
r(6) = 3(6) - 1 = 17 and s(6) = 2(6) + 1 = 13.
Then (r/s)(6) = 17/13.
 
        
             
        
        
        
Answer:
Train A = 299 tons Train B = 50 tons
Step-by-step explanation:
Train A = x 
Train B = y
x+y = 349
x= y +249
Plug in one equation into another
y+249+y= 349
Simplify
2y+249=349
Subtract 249 from both sides
2y=100
Divide both sides by 2
y=50
Plug it into the x equation to solve for x
x+50=349
-50 from both sides
x=299