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.) subtra…

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asked Mar 8, 2021 20.3k views

2 Answers

Mahbub Rahman · Answer 1 · 2021-03-14T13:14:29+0000

Answer:

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