I'm not understanding the whole degrees celsius= 5/9 ( degrees celsius - 32).

Is there any other way that this can be explained? A more simpler way?

Say I need to change 77 degress farenhiet. How would I go about changing that to degrees celsius?

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- Aug 20th 2008, 08:30 AMladykChanging Farenhiet into a celsius
I'm not understanding the whole degrees celsius= 5/9 ( degrees celsius - 32).

Is there any other way that this can be explained? A more simpler way?

Say I need to change 77 degress farenhiet. How would I go about changing that to degrees celsius? - Aug 20th 2008, 09:21 AMmasters
- Aug 20th 2008, 09:31 AMTKHunny
__Establish the Facts.__

Celsius

Freezing = 0º

Boiling = 100º

Farenheit

Freezing = 32º

Boiling = 212º

**Establish the Model. I believe it to be linear**

ºC = B*(ºF - A)

__Apply the Facts__

0ºC = B*(32ºF - A)

100ºC = B*(212ºF - A)

**Solve for the Model Parameters**

I will leave this to the interested student. That would be you.

Hint: From the first equation, the value of A should be relatively obvious.

__Check with Other Known Values__

It is widely known that -40ºC = -40ºF and not quite so widely known that 40ºC = 104ºF. Make sure your values work for these two.

Exploration: Once you get A and B, solve the Model Equation for ºF and create the formula for conversion in the other direction. It will be fun! - Aug 21st 2008, 06:15 AMladyk
Thanks to both of you! :)