Предмет: Алгебра, автор: marya202kekoyt0vv

12 одинаковых платьев дешевле шубы на 16 %. На сколько процентов 17 таких платьев дороже шубы?

Ответы

Автор ответа: Удачник66

Ответ:

На 19%

Объяснение:

Пусть шуба стоит x рублей, тогда 12 платьев стоят

(1-0,16)x = 0,84x рублей.

А одно платье стоит

0,84x : 12 = 0,07x рублей.

Тогда 17 платьев стоят

17*0,07x = 1,19x рублей.

Значит, 17 платьев дороже шубы на 0,19x, то есть на 19%.

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