Answer :
To convert degrees Fahrenheit to degrees Celsius, we use the formula:
[tex]\[ C = \frac{5}{9} \times (F - 32) \][/tex]
Here, Barbara is converting [tex]\(78^\circ F\)[/tex] to degrees Celsius. She has already completed the first step, which is subtracting 32 from 78. This gives her:
[tex]\[ 78 - 32 = 46 \][/tex]
The next step in the conversion is to multiply the result by [tex]\( \frac{5}{9} \)[/tex].
So, Barbara should now multiply 46 by [tex]\( \frac{5}{9} \)[/tex] to find the equivalent temperature in degrees Celsius.
[tex]\[ C = \frac{5}{9} \times (F - 32) \][/tex]
Here, Barbara is converting [tex]\(78^\circ F\)[/tex] to degrees Celsius. She has already completed the first step, which is subtracting 32 from 78. This gives her:
[tex]\[ 78 - 32 = 46 \][/tex]
The next step in the conversion is to multiply the result by [tex]\( \frac{5}{9} \)[/tex].
So, Barbara should now multiply 46 by [tex]\( \frac{5}{9} \)[/tex] to find the equivalent temperature in degrees Celsius.