Question

найдите неизвестный член пропорции: 28:0,07=32:x

Answer 1

$\frac{28}{0.07} = \frac{32}{x} \\ \\ x = \frac{0.07 \times 32}{28} \\ \\ x = \frac{0.07 \times 8}{7} \\ \\ x = \frac{0.56}{7} \\ \\ x = 0.08$