Три нові правильні пропорції, якщо дано правильну пропорцію 7:2 = 4,2:1,2
Koko1324
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25.12.2020 22:59
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Пошаговое объяснение:
3,5:1=2,1:0,6
14:4=8,4:2,4
28:8=16,8:4,8