Question

Convert 72°F to °C (to the nearest tenth) using one of the following formulas:
F = 9/5xC + 32 or C = (F — 32) x 5/9.
22.2
54.2
72.0
161.6

Answer 1

Which one do you want to use?

Answer 2

\[C = (F - 32) \times \frac{ 5 }{ 9 }\]

It clearly shows what we have to do. Lets start by inputting F = 72

\[C = (72 - 32) \times \frac{ 5 }{ 9 }\]

Do the functions inside the parentheses(subtraction)

\[C = 40 \times \frac{ 5 }{ 9 }\]

Multiply 40 by 5/9

We get,

\[C = 22.222222222 \rightarrow C = 22.2\]