Question

barbara is converting 78°f to degrees celsius. first, she subtracts 32 from 78. what is the next step?
multiply 46 by 5/9
multiply 46 by 9/5
add 273 to 46
subtract 273 from 46

Explanation:

Step1: Recall the Fahrenheit - Celsius conversion formula

The formula to convert Fahrenheit ($F$) to Celsius ($C$) is $C=\frac{5}{9}(F - 32)$. After subtracting 32 from the Fahrenheit temperature, we need to multiply the result by $\frac{5}{9}$.

Step2: Analyze the result of subtraction

Barbara subtracted 32 from 78, getting $78-32 = 46$. According to the formula, the next step is to multiply 46 by $\frac{5}{9}$.

Answer:

multiply 46 by 5/9