do now 2. where do you encounter percentages? 4. convert 0.9, …€¦ · ab 2.7 percent...
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AB 2.7 Percent Change.notebook
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September 23, 2013
"Do Now"
Answer these questions to the best of your ability:
1. What is a percent?
2. Where do you encounter percentages?
3. Convert 13%, 5%, 140%, and 0.04% to decimals.
4. Convert 0.9, 7.5, 0.13, and 0.005 to percentages.
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September 23, 2013
Ms. Stalvey's favorite treat is Chips Ahoy Reduced Fat cookies(Her dad got her hooked!)
They claim one serving (3 cookies) has 25% less fat than the original Chips Ahoy. How did they calculate that claim?
Is their claim correct?
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September 23, 2013
Ms. Stalvey also loves M&M's.Which is "healthier": Milk Chocolate M&M's or Peanut M&M's?
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Unit 2: Solving Equations2.7 Percents
NameAlgebra 1/Block
Date
Percent of Change amount of change
original=Percent of Change
amount of change
original
POC
100=
Original Original(POC) = New
(Finding using a ratio)
(Finding usingan equation)
Depends upon whether a percent increase or
decrease
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Determine whether the percent of change in an
increase or decrease, then find
the percent.
1) original: 66new: 30
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2) original: 9.8 new: 12.1
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Whiteboards
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Exit Slip
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Review Last Night's Homework
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