Предмет: Математика, автор: Аноним

помогите пожалуйста дам 50 балів
Деякий товар коштував 200 грн, а потім його ціна зни зилась на 30 грн. Скільки у від- сотках тепер коштує товар по- рівняно з початковою ціною?

tetamotatetyamotya: 1,7%

Ответы

Автор ответа: iramazurk

Пошаговое объяснение:

1) 200 - 30 = 170 (грн) - стал стоить товар

200 грн = 100%

170 грн = х %

200/170 = 100/х

200 * х = 170 * 100

200х = 17000

х = 17000 : 200

х = 85

85% стал стоить товар по сравнению с начальной ценой .

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