Question

xfavor ayúdenme a resolver este problema matemático
debo resolver:
:"(((​

Answer 1

Respuesta:

$n = 0.2 \\ 10n = 2.2 \\ 10n - n = 2.2 - 0.2 \\ 9n = 2 \\ n = \frac{2}{9}$

$n = 1.2 \\ 10n = 12.2 \\ 10n - n = 12.2 - 1.2 \\ 9n = 11 \\ n = \frac{11}{9}$

$0.6 \times \frac{10}{10} = \frac{6}{10} = \frac{3}{5}$

$n = 0.3 \\ 10n = 3.3 \\ 10n - n = 3.3 - 0.3 \\ 9n = 3 \\ n = \frac{3}{9}$

$n = 0.1 \\ 10n = 1.1 \\ 10n - n = 1.1 - 0.1 \\ 9n = 1 \\ n = \frac{1}{9}$

sustituye

$( \frac{2}{9} - \frac{11}{9} ) \times \frac{2}{5} + (1 - \frac{3}{9} + \frac{1}{9} ) {}^{ - 1} \\ \frac{ - 9}{9} \times \frac{3}{5} + ( \frac{9}{9} - \frac{3}{9} + \frac{1}{9} ) {}^{ - 1 } \\ \frac{ - 27}{45} + ( \frac{6}{9} + \frac{1}{9} ) {}^{ - 1} \\ \frac{ - 9}{15} + ( \frac{7}{9} ) { }^{ - 1} \\ \frac{ - 9}{15} + \frac{9}{7} \\ \\ \frac{ - 3}{5} + \frac{9}{7} = \frac{ - 21}{35} + \frac{45}{35} = \frac{24}{35}$

espero te sirva