Question

даю 70 баллов прошу помогите пж​

Answer 1

Ответ:

$\frac{5}{100} + \frac{8}{100} + x = \frac{20}{100 }$

$\frac{13}{100} + x = \frac{20}{100}$

$x = \frac{20}{100} - \frac{13}{100}$

$x = \frac{7}{100}$

Answer 2

$\frac{5}{100} + \frac{8}{100} + x = \frac{20}{100}$

$\frac{13}{100} + x = \frac{20}{100}$

$x = \frac{20}{100} - \frac{13}{100}$

$x = \frac{7}{100}$