Предмет: Математика, автор: пирог3200085

куплено 6кг яблок и 2кг груш. За всю покупку заплачено 20р. Сколько стоит 1кг груш, если 1кг груш стоит вдвое дороже 1кг яблок?

Ответы

Автор ответа: MiNiKoTiC1984

2

Яблок-6 кг.
Груш-2 кг.
Затраченно-20 р.
Груш-х
Яблок-х
По условию,делаем уравнение:
6х + 4х = 20
х = 2
2х = 4 (2*2=4).

пирог3200085: спасибо большое

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