Question

The formula used to convert degrees Celsius to degrees Fahrenheit is F = 9/5 C +32. Convert 68°F to degrees Celsius. Solve the formula for C, and then use it to convert the temperature. Which is the correct formula and conversion?

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Answer 1

D. C = 5/9 ( F - 32 ) ; conversion: 68° F = 20° C

Answer 2

D

Step by step explanation:

`F = (9)/(5)C + 32`

The main objective is to isolate C and to make C the subject of the equation:

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

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

Now substitute the given value of F:

`C = (5)/(9) (68-32)`

`=C = (5)/(9) (36)`

`= C = 20^(o) C`