Transcription of Lesson 4: Percent Increase and Decrease
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NYS COMMON CORE MATHEMATICS CURRICULUM 7 4 Lesson 4 Lesson 4: Percent Increase and Decrease Name: Date: Objective: Solve Percent problems when one quantity is a certain Percent more or less than another. Solve Percent problems involving a Percent Increase or Decrease . Bell-Ringer I have/who has activity Classwork Opening Exercise Example 1: Finding a Percent Increase Cassandra likes jewelry. She has five rings in her jewelry box. a. What Percent is represented by the whole collections of rings? What Percent of the collection does each ring represent? b. Cassandra s aunt said she will buy Cassandra another ring for her birthday. If Cassandra gets the ring for her birthday, what will be the Percent Increase in her ring collection? Lesson 4: Percent Increase and Decrease S.
Example 4: Finding the Original Amount Given a Percent Increase or Decrease The population of cats in a rural neighborhood has declined in the past year by roughly 30%. Residents hypothesize that
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