Mathematics
Mathematics, 04.03.2021 17:50, zriggi2528

4 1. В сплаве, масса которого 10кг, содержится
5
никеля и в равных количествах
четыре других металла, среди которых есть железо. Сколько железа содержится в
сплаве?
2 В Be cepeána
массой 210г серебро
Me​

answer
Answers: 1

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4 1. В сплаве, масса которого 10кг, содержится
5
никеля и в равных количествах
четыр...

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