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A 20 gallon fish tank is being filled at a rate of 2 gallons per minute.At this rate,how many minutes will it take to fill this fish tank 3/4 full?

A 20 gallon fish tank is being filled at a rate of 2 gallons per minuteAt this ratehow many minutes will it take to fill this fish tank 34 full class=

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the answer is 7 and a half
SakerTooth
Since 3/4 of 20 is 15, 15 is 3/4 of tank.

Then since the tanked is being filled at a unit rate of 2 I would do 2 * 7.5 which is 15 :D Yay!

Then I would do 1 * 7.5 which is 7.5

So, the tanked would be filled at 3/4 in 7.5 minutes or 7 1/2 a minute.

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