pbovaird pbovaird

13-04-2017
Mathematics

contestada

it is neccessary to have a 40% antifreeze solution in the radiator of a certain car. The radiator now has 40 liters of 20% solution. How many liters of this should be drained and replaced with 100% antifreeze to get the desired strenght

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rey10mariia rey10mariia

13-04-2017

I think its between 40 to 50%

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