Answer
$C=10^{\mathrm{o}}$
Work Step by Step
We got this equation in Exercise 101:
$C=\displaystyle \frac{5}{9}(F-32)$
We plug in $F=50$ and solve for $C$:
$C=\displaystyle \frac{5}{9}(50-32)$
$=\frac{5}{9}(18)$
$=10^{\mathrm{o}}$
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