Mathematics
Mathematics, 30.03.2020 20:11, estermartinez

Un minerai fournit 20% de sa masse en fonte.

Quelle quantité de minerai faut-il pour obtenir 1820kg de fonte ?

Merci d'avance

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Un minerai fournit 20% de sa masse en fonte.

Quelle quantité de minerai faut-il pour obt...

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