Respostas
respondido por:
3
Resposta:
1,2777... =(127-12)/90
=115/90=23/18
Letra B
luis00787:
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respondido por:
1
Resposta:
b)23/18
Explicação passo-a-passo:
1,2777...=x(10)
12,777...=10x(10)
127,777...=100x
100x-10x=127,777...-12,777...
90x=115
x=115÷5/90÷5
x=23/18
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