Question

In countries like $USA$ and Canada, temperature is measured in Fahrenheit, whereas in countries like India, it is measured in Celsius. Here is a linear equation that converts Fahrenheit to Celsius : $F=\left(\frac{9}{5}\right)C+32$
If the temperature is $0^{o}C$, what is the temperature in Fahrenheit and is the temperature is $0^{o}F$, what is the temperature in Celsius?

Answer 1

Temperature$=0^{\circ }$C

$F=\frac{9}{5}C+32$

Put $C=0$

$F=\frac{9}{5}\times 0+32=32$

So, if temperature is $0^{\circ }$, temperature is Fahrenheit is ${32}^{\circ }$F

Temperature$=0^{\circ }$F

$F=\frac{9}{5}C+32$

Put $F=0$

$0=\frac{9}{5}C+32$

$\frac{9}{5}C=-32$

$C=\frac{-5}{9}\times 32=-17.77$

So, if temperature is $0^{\circ }$F, temperature in celsius is $-17.77$