Question

0,2*7
--------- =
0,42


0,04*0,025
------------------- =
0,9-0,88

Answer 1

Пошаговое объяснение:

$\frac{0.2 \times 7}{0.42} = \frac{1 \times 7}{2.1} = \frac{1}{0.3} = 1 \frac{10}{3} = 3 \frac{1}{3} \\ \frac{0.04 \times 0.025}{0.9 - 0.88} = \frac{0.04 \times 0.025}{0.02} = \frac{2 \times 0.025}{1} = 0.05$