Найди значения выражения: \(\frac{2}{3}\)x + 3y при x = 2\(\frac{5}{8}\), y = 1\(\frac{11}{12}\)

Подставим значения х и у в выражение и вычислим:

\(\frac{2}{3}\) \(\cdot\) 2\(\frac{5}{8}\) + 3 \(\cdot\) 1\(\frac{11}{12}\) = \(\frac{2}{3}\) \(\cdot\) \(\frac{21}{8}\) + 3 \(\cdot\) \(\frac{23}{12}\) = \(\frac{2 \(\cdot\) 21}{3 \(\cdot\) 8}\) + \(\frac{3 \(\cdot\) 23}{12}\) = \(\frac{1 \(\cdot\) 7}{1 \(\cdot\) 4}\) + \(\frac{1 \(\cdot\) 23}{4}\) = \(\frac{7}{4}\) + \(\frac{23}{4}\) = \(\frac{30}{4}\) = \(\frac{15}{2}\) = 7\(\frac{1}{2}\)

Ответ: 7\(\frac{1}{2}\)