Question

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

Answer 1

A) multiply 46 by 5/9

Explanation:

Answer 2

A.) Multiply 46 by 5/9

Explanation:

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

`\\ C = (5)/(9)*(F-32)`

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

`\\ C = (5)/(9)*(78-32)` [Barbara subtracts 32 from 78]

`\\ C = (5)/(9)*(46)` [Barbara multiplies 46 by 5/9]

`\\ C = (5*46)/(9)`

`\\ C = (230)/(9) = 25.56` or 25.56°C