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Mathematics, 18.04.2020 19:09 mrsrobinson1014
A família Oliveira consiste no pai, na mãe e em alguns filhos. A idade média da família é de 18 anos. Sem contar com o pai, que tem 38 anos, a idade média familiar diminui para 14 anos. Quantos filhos tem a família Oliveira? a) 2 b) 3 c) 4 d) 5 e) 6
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A família Oliveira consiste no pai, na mãe e em alguns filhos. A idade média da família é de 18 anos...
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