Răspuns:
[tex] \frac{ \frac{5}{9} \times \frac{ \sqrt{81} }{ \sqrt{625} } + 0.8 }{ \frac{6}{9} \times \sqrt{580} } = \frac{0.4 \times \sqrt{ \frac{25}{100} } }{ x} [/tex]
[tex] \frac{ \frac{5}{9} \times \frac{9}{25} + 0.8 } { \frac{6}{9} \times \sqrt{580} } = \frac{0.4 \times \frac{5}{10} }{x} [/tex]
[tex] \frac{ \frac{1}{5} + \frac{8}{10} }{ \frac{6}{9} \times \sqrt{580} } = \frac{ \frac{4}{10} \times \frac{5}{10} }{x} [/tex]
[tex] \frac{ \frac{2}{10} + \frac{8}{10} }{ \frac{2}{3} \times \sqrt{580} } = \frac{2}{x} [/tex]
