Предмет: Математика, автор: Аноним

Дріт завдовжки 89 м розрізали на дві частини так, щоодна з них виявилася на 7м довшою за іншу. Знали довжину утворених частин.​

Ответы

Автор ответа: gigatron
49
Нехай х м-1 част,х+7 м-2 част.
х+х+7=89
2х=89-7
2х=82
х=41
1 част-41 м
2 част-41+7=48 м
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