Question

Розв‘яжи пропорцію:z:3/14=3 1/9:4/9
Пж дам 25 балов

Answer 1

$z \div \frac{3}{14} = 3 \frac{1}{9} \div \frac{4}{9} \\ \\ \frac{4}{9} z = \frac{3}{14} \times 3 \frac{1}{9} \\ \\ \frac{4}{9} z = \frac{3}{14} \times \frac{28}{9} \\ \\ \frac{4}{9} z = \frac{2}{3} \\ \\ z = \frac{2}{3} \div \frac{4}{9} \\ \\ x = \frac{2}{3} \times \frac{9}{4} \\ \\ z = \frac{3}{2} = 1 \frac{1}{2} = 1.5$