10/20/19

#### A chemist needs 12 liters of a 10% alcohol solution but has only a 30% alcohol solution.

How many liters each of the 30% solution and water should he mix to make the desired 12 liters of a 10% solution?

10/20/19

#### Need help with word problem please

If Tanisha has $100 to invest at 9% per annum compounded semianually, how long will it be before she has$200? Also, if the compounding is continuous, how long will it be?

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