.87 is correct you can always check your work with an online calculator. :)
        
             
        
        
        
X 2 4 6 8 y 1 2 3 4  is a proportional relationship since it is going by multiples of 2 
        
             
        
        
        
Answer:
Either,  , -0.75, or 4x = -3!
, -0.75, or 4x = -3!
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
90
Step-by-step explanation:
4/15 which is our fraction distance/time
our other fraction is 24/x (x is our variable to find our time)
Now we are doing the buultterfly method 
set it up 
now multiply 4*x= 4x 
15*24=360
now divide 4x ÷ 4 to get our variable alone 
do the same to the other side 
4 ÷ 360= 90 
so x= 90 which is our missing number
 
        
             
        
        
        
Answer:
The answer to your question is:  30°
Step-by-step explanation:
Data
m∠ 1 = 5x
m∠ 3 = x - 24
Process
 m ∠ 1 = m ∠ 3 because they are vertical angles
             5x = x - 24
             5x - x = 24
             4x = 24
             x = 24 / 4
             x = 6
Angle 1 = 5(6) 
             = 30°