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Converting minutes to weeks is easy. Just multiply by 60 minutes per hour x 24 hours per day x 7 days per week to get 10080 minutes per week. The drops per gallon is a little harder to figure. I assume you are talking water, still, it could vary depending upon the purity and temperature of the water. However, U.S. Geological Survey says that they have made a number of measurements, and figure an average of 15140 drops per gallon. Take your 2 1/2 gallons. Multiply by 15140 to get to drops per week. Divide by 10080 to get to drops per minute. The answer is: around 3.75 drops per minute.

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13y ago

What else can I help you with?