\[\boxed{\mathbf{526\ (}\mathbf{с}\mathbf{).\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[1250 = a_{0} \cdot \left( 1 + \frac{25}{100} \right)^{2}\]
\[1250 = a_{0} \cdot 1,25²\]
\[a_{0} = \frac{1250}{1,5625} =\]
\[= 800\ (руб.) -\]
\[первоначальная\]
\[\ цена\ люстры.\]
\[Ответ:800\ рублей.\]
\[\boxed{\mathbf{526.\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[n\] | \[1\] | \[2\] | \[3\] | \[4\] | \[5\] | \[6\] |
---|---|---|---|---|---|---|
\[a_{n}\] | \[100\] | \[105\] | \[110\] | \[115\] | \[120\] | \[125\] |
\[a_{1} = 100.\]