Question

срочноооооо дам 50 баллов​ только 2,4,6

Answer 1

$2) ( \frac{5}{12} -X ) : \frac{1}{2} = \frac{2}{9}$

$\frac{5}{12} - X = \frac{2}{9} * \frac{1}{2}$

$\frac{5}{12} - X = \frac{1}{9}$

$-X = \frac{5}{12} - \frac{1}{9}$

$-X = \frac{15}{36} - \frac{4}{36}$

$-X = \frac{11}{36}$

$X = -\frac{11}{36}$

$4) \frac{4}{15} - ( y + \frac{3}{25} ) = \frac{1}{25}$

$\frac{4}{15} - y - \frac{3}{25} = \frac{1}{25}$

$\frac{4}{15} - y = \frac{4}{25}$

$-y = \frac{4}{15} -\frac{4}{25}$

$-y = \frac{20}{75} - \frac{12}{75}$

$-y = \frac{8}{25}$

$y = - \frac{8}{25}$

$6) 3\frac{1}{16} = \frac{49}{16}$

$X - \frac{5}{16} = \frac{49}{16} * \frac{8}{7}$

$X - \frac{4}{15} = \frac{7}{2}$

$X = \frac{105}{30} + \frac{8}{30}$

$X = \frac{113}{30} = 3 \frac{23}{30}$