Why must you multiply celsius by 1.8 then add 32 when converting from celsius to farenheit?

Question

To convert Celsius to Farenheit:
1. Identify temparature in Celsius
2. Multiply it by 1.8
3. Add 32 to the result
The answer is temparature in Farenheit.

Explain WHY do you have to multiply by 1.8 and why do you have to add 32?

Answer 1

Consider that water boils at 212F and 100C, and it freezes at 32F and 0C. Notice that there are 180 degrees F between freezing and boiling, while there are only 100 degrees C; this gives you the multiplication factor of 1.8. Also notice that there is a difference of 32 between the freezing points on the two scales; this gives you the addition on 32.

In other words, there are 1.8 degrees F for each degree C, and the scales are offset by 32 degrees.

Answer 2

The formula is:
ºC/5=(ºF-32)/9.
The temp. scales are organized:
0ºC = -32 ºF 100ºC= 212ºF

if your work with the formula you can deduct the ratio.

Answer 3

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go to that site it will help you out.