yaelleautret29 yaelleautret29

11-12-2022
Mathematics

contestada

un groupe de cent personne vont ensemble au restaurant.Elle on le choix entre deux formles:une a 20€ et une autre a 25€.
1.on appelle x le nombre de personne choisissant le menu a 20€. Exprimer le montant de l'adition A(x) en fonction de x.
2.le monttant de l'addition est de 21851€. Combien de personne ont choisit le menu a 20€.

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