Объяснение:
[tex]0.1 = \frac{10}{200 + x} \\ 0.1(200 + x) = 10 \\ 20 + 0.1xx = 10 \\ 0.1x = 10 \\ x = 100[/tex]
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Объяснение:
[tex]0.1 = \frac{10}{200 + x} \\ 0.1(200 + x) = 10 \\ 20 + 0.1xx = 10 \\ 0.1x = 10 \\ x = 100[/tex]