Предмет: Математика, автор: ideykalo1337

ХЕЛП ПЛИЗ!
Цена входного билета на стадион составляла 2р.После снижения входной платы число зрителей увеличилось на 25%,а выручка возросла на 12,5%.Сколько стал стоить входной билет после снижения цены?

Ответы

Автор ответа: anna71an

1

Ответ: 1,8руб

Пошаговое объяснение:

Пусть цена после подешев -х, а у - число зрителей до подешев, тогда число зрит после подор -1,25у. Выручка до подешев - 2у, тогда после 2у+2у*0,125=2,25у.Сост уравнение 1.25ух=2,25у

х=2,25/1,25

Х=1,8

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