Question

va rogg dau coroanaaa​

Answer 1

Răspuns:

$\frac{a}{b} = \frac{3}{4} \\ a = 9 \\ \frac{9}{b} = \frac{3}{4} \\ 3b = 9 \times 4 \\ 3b = 36 \\ b = \frac{36}{3} \\ b = 12$