Предмет: Математика, автор: nastamalahovska0

20%числа x становить 50% числа 180.Знайдіть числоx?​

Ответы

Автор ответа: MuhammadGulu
1

Ответ: 450

180 \:  \:  \:  -  \:  \:  \: 100\% \\ x \:  \:  \:  -  \:  \:  \: 50\% \\  \\ x =  \frac{50 \times 180}{100}  = 90

90 \:  \:  \:  -  \:  \:  \: 20\% \\ x \:  \:  \:  -  \:  \:  \: 100\% \\  \\ x =  \frac{90 \times 100}{20}  = 450

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