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Barbara is converting 78°F to degrees Celsius. First, she subtracts 32 from 78. What is the next step?
A.) multiply 46 by 5/9
B.) multiply 46 by 9/5
C.) add 273 to 46
D.) subtract 273 from 46

Respuesta :

Answer:

A.) Multiply 46 by 5/9

Step-by-step explanation:

The formula to convert Fahrenheit degrees to Celsius degrees is as follows:

[tex]\\ C = \frac{5}{9}*(F-32) [/tex]

So, converting 78°F to °C, according this previous equation is:

[tex]\\ C = \frac{5}{9}*(78-32) [/tex] [Barbara subtracts 32 from 78]

[tex]\\ C = \frac{5}{9}*(46) [/tex]  [Barbara multiplies 46 by 5/9]

[tex]\\ C = \frac{5*46}{9} [/tex]

[tex]\\ C = \frac{230}{9} = 25.56 [/tex] or 25.56°C

Answer:

A) multiply 46 by 5/9

Step-by-step explanation: