Question

1:5=3:10x

плеззз
даю 22 балла

Answer 1

$1 \div 5 = 3 \div 10x \\ 10x = 3 \times 5 \\ 10x = 15 \\ x = \frac{15}{10} \\ x = 1 \frac{5}{10} = 1 \frac{1}{2}$