Предмет: Математика, автор: Solmazim

Pomoqite plis mne na zavtra nujnaaaa 172

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Автор ответа: Kазак

0

0,25a=0,35b,
b=0,25/0,35*a=25/35*a=5/7*a
b/(5a)=5a/(7*5*a)=1/7

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