Предмет: Математика, автор: lydmilatkachenko

наталья має грошей на 60 к. більше,ніж її брат.Після того як вона купила книжку,в неї залишилося на 2 грн 40 коп менше,ніж у брата.Скільки коштувала книжка?

Ответы

Автор ответа: nastya1shinobyx

0

Ответ:нижче

Пошаговое объяснение:

отже, можна записати так, що в наталії було -60к, а після покупки -2грн 40к. Тоді -2 грн 40к - (-60к). розкриваємо дужки: -2 грн 40к + 60к, виходить 1грн 80к

Автор ответа: zzzzzzzzzzzzzzzzzgg

3

Ответ:

3грн

Пошаговое объяснение:

было на 60к больше, стало на 2грн40к меньше, значит потратила эти 60к и еще 2грн40

60+240

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