Answer:
Eli has to run for 2.25 minutes at this pace to win the bet.
Step-by-step explanation:
At his last track meet, Eli ran the 400-meter dash in 54 seconds.
So, the speed of Eli's run is  meters per minute.
 meters per minute.
Now, if Eli is determined to run a whole kilometer with the same speed, then it will take Eli to run 1 kilometer within  minutes.
 minutes.
Hence, Eli has to run for 2.25 minutes at this pace to win the bet. (Answer)
 
        
             
        
        
        
Answer: 15 minutes 
Explanation:
        
                    
             
        
        
        
Answer:
60
Step-by-step explanation:
 
        
                    
             
        
        
        
C obtuse scalene
Source:
http://www.1728.org/triang.htm