The average speed, in km/minute, of the train is 2.79 km/minute
<h3>Calculating average speed </h3>
From the question, we are to calculate the average speed in km/minute 
From the given information, 
Distance travelled = 503 km 
Time taken = 3 hours = 3 × 60 minutes = 180 minutes
Using the average speed formula, 
Average speed = Distance / Time 
∴ Average speed of the train = 503 / 180 
Average speed of the train = 2.79 km/minute
Hence, the average speed, in km/minute, of the train is 2.79 km/minute
Learn more on Calculating average speed here: brainly.com/question/12025128 
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The answer is 5 because 5x4=20 divided by 100
        
             
        
        
        
<span>A 
−10 + 16 = 6
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Answer:
3/17
Step-by-step explanation:
multicolored and 1 passenger (3) over total (17)
3/17 doesn't simplify
 
        
             
        
        
        
Answer:
x = 21/10
Step-by-step explanation:
3/10 = x/7
Cross multiply.
10x = 21
x = 21/10