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

Answer :

Certainly! Let's convert 78 degrees Fahrenheit to degrees Celsius step-by-step.

1. Start with the original temperature in Fahrenheit:
We have 78°F.

2. Subtract 32 from the Fahrenheit temperature:
78 - 32 = 46.
This is the first step in converting degrees Fahrenheit to degrees Celsius.

3. Multiply the result by the fraction 5/9:
After subtracting, we have 46. Now, we multiply 46 by 5/9 to convert it to Celsius.

So, we calculate:
46 * (5/9) = 25.56 (approximately).

Therefore, the correct next step after subtracting 32 is to multiply 46 by 5/9.

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