marlenymonserrath marlenymonserrath

22-04-2016
Mathematics

contestada

Cuantos litros de una solución al 30% deben agregarse a 10 litros de igual solución al 16% para producir una al 25%

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Ålkapvivvv Ålkapvivvv

22-04-2016

30% - 10% = 20% + 16% =36% - 25% = 11%

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