Question

If the Celsius temperature 20 degrees C, what is the Fahrenheit temperature (F)?

Answer 1

68 degrees Fahrenheit.

Explanation:

The ratio of degree's C to degrees F is 9/5

freezing to boiling for C is from 0 to 100 a change of 100
freezing to boiling for F is from 32 to 212 a change of 180

This is a ratio of 5:9 F to C or 9:5 C to F.

so `20 xx 9/5 = 36` degrees F

However`0^oC = 32^oF` since the two temperature scales have different starting points 32 degrees must be added .

`36 + 32 = 68`

`F = (C xx 9/5) + 32`

`F = ( 20 xx 9/5) +32`

`F = 68`