Answer:
57
Step-by-step explanation:
3 * 3 * 3 = 27 +       5*6 =30   27+30=57
Hope this helps!
 
        
                    
             
        
        
        
$48.31/23=$2.10. $2.10x18=$37.81
        
             
        
        
        
Answer:
-  3 hours
-  1 hour 45 minutes
-  300 miles
Step-by-step explanation:
1. The trains are moving toward each other at a total speed of 50 +20 = 70 miles per hour. Together, they cover the 210 mile distance in ...
   time = distance/speed
   time = 210 mi/(70 mi/h) = 3 h
The trains collide after 3 hours.
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2. The fly is closing with the freight train at a speed of 100 +20 = 120 miles per hour. Together, the fly and the train cover the initial 210 mile distance in ...
   (210 mi)/(120 mi/h) = 7/4 h = 1 hour 45 minutes
The fly first meets the oncoming freight train after 1 h 45 min.
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3. The fly is flying for all three hours before the trains collide, so, at 100 miles per hour, will fly 300 miles.
 
        
             
        
        
        
The answer will be 35 because it is a proportional side length
        
                    
             
        
        
        
Answer:
I think -3.5 is the right answer