A vat with 500gallons of beer contains 4% alcohol (by volume). Beer with 7% is pumped into the vat at a rate of 5gallons/minute and the mixture is pumped out at the same rate. a) What is the amount of alcohol after an hour? b) What is the percentage of alcohol after an hour?

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A vat with 500gallons of beer contains 4% alcohol (by
volume). Beer with 7% is pumped into the vat at a rate of
5gallons/minute and the mixture is pumped out at the
same rate.
a) What is the amount of alcohol after an hour?
b) What is the percentage of alcohol after an hour?
Transcribed Image Text:A vat with 500gallons of beer contains 4% alcohol (by volume). Beer with 7% is pumped into the vat at a rate of 5gallons/minute and the mixture is pumped out at the same rate. a) What is the amount of alcohol after an hour? b) What is the percentage of alcohol after an hour?
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