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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]5/9[/tex]
B. Multiply 46 by [tex]9/5[/tex]
C. Add 273 to 46
D. Subtract 273 from 46

Answer :

To convert temperatures from Fahrenheit to Celsius, Barbara follows a specific formula. Let's walk through the process together:

1. Subtract 32 from the Fahrenheit Temperature: Barbara starts with 78 degrees Fahrenheit. The first step is to subtract 32:

[tex]\( 78 - 32 = 46 \)[/tex]

2. Multiply by [tex]\(\frac{5}{9}\)[/tex]: After subtracting 32, the next step is to convert the remaining value to Celsius. To do that, she multiplies by [tex]\(\frac{5}{9}\)[/tex]:

[tex]\( 46 \times \frac{5}{9} \)[/tex]

When you perform this multiplication, you get approximately 25.56 degrees Celsius.

So, the correct next step after subtracting 32 is to multiply 46 by [tex]\(\frac{5}{9}\)[/tex] to convert the Fahrenheit temperature to Celsius.

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