Предмет: Математика, автор: spxxx124

Поясніть як розв'язати задачу.

Приложения:

Ответы

Автор ответа: aarr04594

Відповідь: 2500 грн

Покрокове пояснення:

Приложения:

Автор ответа: iramazurk

Пошаговое объяснение:

Положил в банк = х грн

Сумма вклада через 1 год = х + 0,2х = 1,2х грн

Сумма вклада через 2 года = 1,2х + 0,2*1,2х = 1,2х + 0,24х = 1,44х грн

Через 2 года он получил 1100 грн прибыли к первоначальному вкладу = х + 1100 грн

1,44х = х + 1100

1,44х - х = 1100

0,44х = 1100

х = 1100 : 0,44

х = 2500

Ответ: 2500 грн положил в банк

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