Mathematics, 16.12.2020 06:10 Lalagrl

URGENT! A scientist begins an experiment with 20.25 milliliters of a chemical. She adds 0.75 milliliter of water to the chemical every 10 minutes, starting at 1:30 P. M.

The scientist continues adding the 0.75 milliliters to the mixture until amount of chemical and water are EQUAL. At that point she uses 2/3 of the mixture for further experiments.

How many milliliters of the mixture are unused?

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URGENT! A scientist begins an experiment with 20.25 milliliters of a chemical. She adds 0.75 millil...