Предмет: Математика, автор: Рокетас

Рабочий за 60 изготовленных частей получает сумму 11400руб. Какова будет его сумма за 80 частей, если стоимость одной части увеличат на 20%?

Ответы

Автор ответа: vk002

11400:60=190(за одну часть без наценки)
190-100% пропорция
Х- 20%
Х=190*20/100=38(это 20%)
Часть с наценкой: 190+38=228

80×228= 18240 (за 80 частей)

Автор ответа: vk002

Понятно надеюсь)?

Автор ответа: Рокетас

да

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