Problem PageQuestion An aquarium tank can hold liters of water. There are two pipes that can be used to fill the tank. The first pipe alone can fill the tank in minutes. The second pipe can fill the tank in minutes by itself. When both pipes are working together, how long does it take them to fill the tank?

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Step-by-step explanation:

An aquarium tank can hold V liters of water.

The first pipe alone can fill the tank in minutes. Then the first pipe fills liters per minute.

The second pipe can fill the tank in minutes by itself. Then the first pipe fills liters per minute.

When both pipes are working together, they fill

liters per minute.

Working together they need

minutes to fill the aquarium.

Just substitute given times to find the common time needed.

the central idea is that:

individuals should refuse to cooperate with institutions they believe unjust.

thoreau felt  that governments were more often agents of corruption than justice, even democracies, and that just because the majority feels a certain way does not make it just or correct in absolute terms. he uses the fact that slavery exists in our democracy to support this idea.

he goes on to say that, as a result, people should live true to their own internal laws regarding right and wrong, as a product of reflection and a moral life, rather than following every law that society imposes. 

step-by-step explanation: