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ВероникаМяу1
@ВероникаМяу1
July 2022
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90% от 20% числа B равны 9.9 .Найдите число b
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0337187
90%=0.9
20%=0.2
90% от 20%=0.9*0.2=0.18
9.9/0.18=55
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20%=0.2
90% от 20%=0.9*0.2=0.18
9.9/0.18=55