Ответ:

[tex] \frac{y - 3.5}{8 \frac{5}{6} } = \frac{ \frac{3}{53} }{5} \\ y - 3.5 = \frac{ \frac{53}{6} \times \frac{3}{53} }{5} \\ y - 3.5 = \frac{ \frac{1}{2} }{5} \\ y - 3.5 = 0.1 \\ y = 3.6[/tex]

[tex] \frac{7}{9 \frac{5}{11}} = \frac{\frac{33}{104}}{y - 3,5} \\ y - 3,5 = \frac{\frac{104}{11} \times \frac{33}{104}}{7} \\ y - \frac{7}{2} = \frac{3}{7} \\ y = \frac{6}{14} + \frac{49}{14} \\ y = \frac{55}{14} \\ y = 3 \frac{13}{14}[/tex]