Algebra 2 | Unit 4 | Lesson 5: Changes Over Rational Intervals | Practice Problems

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CCSS.HSF.LE.A.2

At 7 a.m., a colony of 100 bacteria is placed on a petri dish where the population will triple every 6 hours. Select all statements that are true about the bacteria population.

• A: When the bacteria population reaches 900, 12 hours have passed since the colony was placed on the petri dish.

• B: Three hours after the colony is placed on the petri dish, there are 200 bacteria.

• C: Three hours after the colony is placed on the petri dish, there are about 173 bacteria in the colony.

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CCSS.HSF.LE.A.4

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CCSS.HSF.LE.B.5

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CCSS.HSF-IF.C.8B

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CCSS.HSF-IF.C.8B

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CCSS.HSF-IF.C.8B

A piece of paper has area 93.5 square inches. How many times does it need to be folded in half before the area is less than 1 square inch? Explain how you know.

The area covered by an invasive tropical plant triples every year. By what factor does the area covered by the plant increase every month?