That's right!

Listening to an international news segment on CNN, you hear that the local temperature is 42oC. What is that on the Fahrenheit temperature scale?

Recall that the two temperature scales are connected by

 

TC = (5/9) (TF - 32)

TF = (9/5) TC + 32

since we need to convert from Celsius to Fahrenheit, we need

 

TF = (9/5) TC + 32

TF = (9/5) (42) + 32

TF = 75.6 + 32

TF = 107.6oF

(c) 2002, Doug Davis; all rights reserved.