2 supplementary angles when added together need to equal 180 degrees.
Add:
3x-23 + 2x-12 = 180
Simplify:
5x -35 = 180
Add 35 to both sides:
5x = 215
Divide both sides by 5:
X = 43
Now replace x with 43 in the equation for angle b:
2(43) -12 = 86-12 = 74 degrees
Angle B = 74 degrees
 
        
             
        
        
        
Answer:
1000 mm
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
17.83
Step-by-step explanation:
d = r*t
d = 41 miles
t = 2.3 hours
r = ??
d = rt            Substitute
41 = r * 2.3   Divide by 2.3
41 / 2.3 = r   Switch sides
r = 41/2.3 
r = 17.83 mph  Answer
 
        
             
        
        
        
I=prt. Sub in what you know: 562.50=1500(r)(5). Multiply: 562.5=7500r. Divide to get the unknown by itself: .075=r or 10%=r. :)
        
                    
             
        
        
        
Answer:
B is the correct chose 
Step-by-step explanation: