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Container A has 100 L of water, and is being filled at a rate of 16 liters per minute. Container B has 50 L of water, and is being drained at 6 liters per minute. How many minutes, m, will it take for the two containers to have the same amount of water? The containers will never have the same amount of water.

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Answer:

The containers will never have the same amount of water.

Explanation:

Container A has 100 L of water, and is being filled at a rate of 16 liters per minute.

Filling means that it is adding water.

This means that after m minutes, the amount of water in the container will be:

La(m) = 100 + 16m

Container B has 50 L of water, and is being drained at 6 liters per minute.

Draining means that it is removing water.

This means that after m minutes, the amount of water in the container will be:

Lb(m) = 50 - 6m

How many minutes, m, will it take for the two containers to have the same amount of water?

This is m for which:

La(m) = Lb(m)

100 + 16m = 50 - 6m

16m + 6m = 50 - 100

22m = -50

m = -2....

Since we cannot have a negative number of minutes, the answer is:

The containers will never have the same amount of water.

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