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16-12-2013
Mathematics

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Estimate 49% of 162. Use mental math to calculate 49% of 162. ???

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tomek1172 tomek1172

16-12-2013

[tex]if\ 50\%\ of\ 162\ is\ 81\ so\ 49\%\ of\ 162\ is\ about\ 79-80[/tex]

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januzo4819864 januzo4819864

16-12-2013

[tex]49\%\approx50\%\\50\%=\frac{1}{2}\\\frac{1}{2}\cdot162=81\\49\%<50\%\\The\ answer\ is:\ Serched\ number\ is\ about\ 80.[/tex]

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