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Theussabes
@Theussabes
December 2019
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Numa classe de 40 alunos , 18 sao meninas . qual a taxa de porcentagem das meninas da classe?
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Jonathansz
40 = 100%
18 = x (faz a regrinha de meio por extremos)
40x= 100x18
x=1800/40 = 45%
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18 = x (faz a regrinha de meio por extremos)
40x= 100x18
x=1800/40 = 45%