Mathematics, 06.11.2020 16:40 Worldprofessor6252

Em uma enorme ampulheta, foram colocadas 40 kg de areia. Sabe-se que a areia escoa lenta e uniformemente à razão de 500g por dia e que 2/5 da areia inicial já escoaram. Quantos dias faltam para a areia escoar totalmente?

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Em uma enorme ampulheta, foram colocadas 40 kg de areia. Sabe-se que a areia escoa lenta e uniformem...