Предмет: Математика, автор: 1mil

в железной руле содержится 15% железа.Сколько тонн железа содержится в 380 т руды.Помогите решить

oltnuy: А условие полностью написали?

1mil: задачу?

1mil: да

oltnuy: Для точного решения здесь не хватает данных. проверь полностью ли записано условие задачи. Возможно в 1 тонне железной руды содержится 15% железа?

1mil: да 15

1mil: напиши пожалуйста решение

Ответы

Автор ответа: oltnuy

Если в 1 т руды содержится 15% железа, то по массе это составит
1/100*15=0,15 т железа
380*0,15=57 т железа в 380 т железной руды

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