Предмет: Математика, автор: mishasemsk

Реши задачу с помощью уравнения

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Ответы

Автор ответа: mix289

Ответ:

х+9х = 8000

10х = 8000

х = 8000 : 10

х = 800 - плакат

9*800 = 7200 - макет

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