Question

x:3=2:9 1:4=12:х помогите пж​

Answer 1

Ответ:

$x \div 3 = 2 \div 9 \\ 9x = 3 \times 2 \\ 9x = 6 \\ x = \frac{9}{6} = 1 \frac{3}{6} = 1 \frac{1}{2} = 1.5 \\ x = 1.5$

$1 \div 4 = 12 \div x \\ x = 12 \times 4 \\ x = 48$