Предмет: Математика, автор: вика2790

определите первоночальную цену товара если его цына после снижения на 10% а затем на 20% стала 720 тг пожалуйста

Ответы

Автор ответа: UkYuliya

720:80=9
9*20=180
720+180=1000
1000:90=100:9
100:9*100=10000:9=1111 1/9
Хз в общем

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