Q:
      
      
         
            
At what temperature do the Fahrenheit and celcius scales give the same reading?
         
       
      
      
      
          
      
      
          Answer & Explanation
         Answer: C) -40 degreees         
         
Explanation: We want the temperature when F=C.
We know that, 
So substituting C For F, we have C = 
Therefore,  C = -40. 
Thus when C = -40, we have C = F
       
      
      
      
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