A Clean Up of a Polluted Lake Will Remove 4

question 196

Short Answer

A clean up of a polluted lake will remove 4% of the remaining contaminants every year. How many years will it take to reduce the quantity of contaminants to 1/10 of its present level? Round to the nearest tenth.

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Definitions:

Henry Hudson

A 17th-century explorer who is best known for his explorations of present-day Canada and parts of the northeastern United States, including the river that now bears his name.

Northwest Passage

A sea route connecting the northern Atlantic and Pacific Oceans through the Arctic Ocean, along the northern coast of North America.

British Empire

The British Empire was a global empire marked by overseas colonization, dominion, and influence, making it one of the largest and most powerful empires in history.

Trading Alliance

A formal agreement between two or more parties to exchange goods, services, or support, often aimed at mutual economic benefit.