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The temperature is 4∘ Celsius. Find the temperature in Fahrenheit. $C = \frac{5}{9} (F - 32)$ $C=5/9(F-32)$

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Answer 1 · 2016-12-20T19:07:38

If $C = 4$ $C=4$ , $F = 39.2$ $F=39.2$ .

You have an equation that takes in $F$ $F$ values and spits out $C$ $C$ values.

You want an equation that takes in $C$ $C$ values and spits out $F$ $F$ values.

Start with $C = \frac{5}{9} (F - 32)$ $C=5/9(F-32)$ .

Multiply both sides by $\frac{9}{5}$ $9/5$ to get $\frac{9}{5} C = F - 32$ $9/5C=F-32$ .

Add $32$ $32$ to both sides to get $\frac{9}{5} C + 32 = F$ $9/5C+32=F$ .

So $F = \frac{9}{5} C + 32$ $F=9/5C+32$ .

So if $C = 4$ $C=4$ , $F = \frac{9}{5} (4) + 32 = 39.2$ $F=9/5(4)+32=39.2$ .