Chapter 9 - Measurement - 9.3 Measuring Weight and Temperature - Exercise Set 9.3 - Page 603: 46

-10 C

Here we need to convert a Fahrenheit temperature to its equivalent temperature on the Celsius scale. $C=\frac{5}{9}(F-32)$, where F = Fahrenheit temperature and C = Celsius temperature. F = 14 $C=\frac{5}{9}(F-32) = \frac{5}{9}(14-32) = \frac{5}{9}(-18) = 5 \times (-2) = -10$ For F = 14, C = -10