1 Pour propulser des billes, Luc a construit un plan incliné
de 30° dont la base mesure
15 cm de long.
Quelle est la longueur
de la pente ? Donne
30°
l'arrondi au millimètre.

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Problem number 26 of the rhind papyrus says: find a quantity such that when it is added to of itself the result is a 15. the modern day equation that models this problem is x + x = 15. what is the solution to the equation? x = 10 x = 12 x = 15 x = 30