# Chapter P - Section P.1 - Algebraic Expressions, Mathematical Models, and Real Numbers - Exercise Set - Page 17: 17

$10°C$

#### Work Step by Step

Start with formula: $C=\frac{5}{9}(F-32)$. Plug in $50$ for $F$: $C=\frac{5}{9}(50-32)$. Simplify to solve for C: $C=\frac{5}{9}(18)=10$.

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