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Question: At what temperature the centigrade (Celsius) and Fahrenheit, readings are the same...

At what temperature the centigrade (Celsius) and Fahrenheit, readings are the same

A

– 40°

B
  • 40°
C

36.6°

D

– 37°

Answer

– 40°

Explanation

Solution

C5=F−329\frac{C}{5} = \frac{F - 32}{9} ⇒ t5=t−329\frac{t}{5} = \frac{t - 32}{9} ⇒ t=−40∘t = - 40{^\circ}