College

An outside thermometer reads [tex]$57^{\circ} F$[/tex]. What is this temperature in [tex]^{\circ} C[/tex]? Round your answer to the nearest whole number.

A. 14
B. 49
C. 71
D. 135

Answer :

To convert from degrees Fahrenheit to degrees Celsius, we use the conversion formula

[tex]$$
^\circ C = \frac{5}{9} \left( ^\circ F - 32 \right).
$$[/tex]

Here are the step-by-step calculations for a temperature of [tex]$57^\circ F$[/tex]:

1. Subtract 32 from the Fahrenheit temperature:

[tex]$$
57 - 32 = 25.
$$[/tex]

2. Multiply the result by [tex]$\frac{5}{9}$[/tex]:

[tex]$$
25 \times \frac{5}{9} \approx 13.8889.
$$[/tex]

3. Round the result to the nearest whole number:

[tex]$$
13.8889 \approx 14.
$$[/tex]

Thus, the temperature in Celsius is [tex]$14^\circ C$[/tex].