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Matemática resolução de exercicíos comentada
Utilizando a regra de três simples, encon-
tre a expressão algébrica para definir o que
se pede. Se um corredor percorre (3x÷2)
km em 90 minutos, quanto percorrerá em 5 horas.vi o resultado no meu caderno de exercicíos e na internet mais gostaria deste exercicio comentado para eu procurar entender melhor.
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