Видны

5 Воды продолжа́ли убывать до деся́того ме́сяца,

5 [Lake, Water, Waters] continued убывать [before, until] [tenth, the tenth] months,

и в пе́рвый день деся́того ме́сяца ста́ли видны вершины гор.

and [at, in, of, on] [first, the first] day [tenth, the tenth] months [be, become, get] видны вершины mountains.

And the waters continued to abate until the tenth month;
in the tenth month,
on the first day of the month,
the tops of the mountains were seen.
Genesis 8:5 ESV

And the waters decreased continually until the tenth month:
in the tenth month,
on the first day of the month,
were the tops of the mountains seen.
Genesis 8:5 KJV