Respostas

2014-08-06T09:01:05-03:00
2540-----100%
1143------ X

X= 45%
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2014-08-06T09:15:40-03:00
A quantia de R$ 1143,00 REPRESENTA qual porcentagem R$ 2540,00

regra de três simples

2540--------------------100%
1143-----------------------x%    só cruzar

2540x = 100(1143)
2540x = 114300
x = 114300/2540
x = 45

R$1143,00 representa 45% de R$ 2540,00
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