[ E_d = \frac{\%\Delta Q_d}{\%\Delta P} = \frac{\frac{(7000 - 5000)/((7000 + 5000)/2)}{5000} }{\frac{(16 - 20)/((16 + 20)/2)}{20}} \approx -1.6 ]
Ответ: -1.6.
[ E_d = \frac{\%\Delta Q_d}{\%\Delta P} = \frac{\frac{(7000 - 5000)/((7000 + 5000)/2)}{5000} }{\frac{(16 - 20)/((16 + 20)/2)}{20}} \approx -1.6 ]
Ответ: -1.6.