(a) A tram moved downward 72 meters in 8 seconds at a constant rate. What was the change in
       
      
                
     
    
    
    
    
    1 answer:
            
              
              
                
                
Answer:
a) 9 meters.
b) The total change in temperature was of 288ºC
Step-by-step explanation:
Both these questions can be solved using rules of three.
a) 72 meters in 8 seconds. How many meters it changes each second(in 1 second)?
8s - 72m
1s - x m



9 meters.
b) In 1 hour, heated by 6ºC. How much in total during 48 hours?
1h - 6ºC
48h - xºC
x = 48*6
The total change in temperature was of 288ºC
 
                                
             
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Step-by-step explanation:
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 =3.14 × (80/2)
 =3.14 × 40
 = 125.6yd²
 
        
                    
             
        
        
        
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