Предмет: Математика, автор: mernai0308

мальчик потратил 144р. на книжку 144.- это 45% всей суммы что у него была, сколько р. было у мальчика до покупки??

Ответы

Автор ответа: ivchenkoartur

0

320 рублей потому что 144 поделить на 45% найдём общую суму .

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