College

Barbara is converting [tex]$78^{\circ} F$[/tex] to degrees Celsius. First, she subtracts 32 from 78. What is the next step?

A. Multiply 46 by [tex]\frac{5}{9}[/tex]
B. Multiply 46 by [tex]\frac{9}{5}[/tex]
C. Add 273 to 46
D. Subtract 273 from 46

Answer :

To convert a temperature from degrees Fahrenheit to degrees Celsius, you should follow these steps:

1. Subtract 32: Start with the temperature in Fahrenheit. In this case, Barbara is starting with 78°F. She subtracts 32 from 78, which equals 46.

2. Multiply by [tex]\(\frac{5}{9}\)[/tex]: After getting 46 from the first step, the next step is to convert the result to Celsius. To do this, you multiply 46 by [tex]\(\frac{5}{9}\)[/tex].

Therefore, the correct next step for Barbara, after subtracting 32, is to multiply 46 by [tex]\(\frac{5}{9}\)[/tex]. This will give her the temperature in degrees Celsius.