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Algebra 1 2-9 Complete Lesson: Percents

By Matt Richardson
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Last updated about 2 years ago
21 Questions
Note from the author:
A complete formative lesson with embedded slideshow, mini-lecture screencasts, checks for understanding, practice items, mixed review, and reflection. I create these assignments to supplement each lesson of Pearson's Common Core Edition Algebra 1, Algebra 2, and Geometry courses. See also mathquest.net and twitter.com/mathquestEDU.
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1.
Solve It! Some recommended daily intakes of vitamins are shown. Carrie consumed 10 mg of niacin today. Her brother consumed 11 mg of niacin. Who consumed the greater percent of thier recommended intake?
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2.
How do you know?
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Problem 1 Got It? What percent of 90 is 54?
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Problem 2 Got It?
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Problem 3 Got It? A family sells a car to a dealership for 60% less than they paid for it. They paid $9000 for the car. For what price did they sell the car?
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Problem 4 Got It?
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Problem 5 Got It? You deposited $125 in a savings account that earn a simple interest rate of 1.75% per year. You earn a total of $8.75 in interest. For how long was your money in the account?
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Vocabulary: Complete: p% is equivalent to a fraction with a numerator of p and a denominator of __?__.

Enter only a number.
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14.
Reasoning: You deposited money in a savings account paying 4% simple interest per year. The first year, you earned $75 in interest. How much interest will you earn during the following year? Enter only the amount in this format: $14
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Open-Ended: Create your own percent problem where the part is greater than the base. Hint: This means that the numerator is larger than the denominator and the resulting percent is greater than 100.
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Review Lesson 2-8: Art: A painting 36 cm wide and 22.5 cm tall is going to be reproduced on a postcard. The image on the postcard will be 9 cm tall. How wide will the image be? Setup the problem on the canvas.
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Review Lesson 2-8: Art: A painting 36 cm wide and 22.5 cm tall is going to be reproduced on a postcard. The image on the postcard will be 9 cm tall. How wide will the image be?
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Vocabulary Review: Classify each number based on whether or not it is a rational number.
  • Rational number
  • NOT a rational number
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Use Your Vocabulary: Complete each sentence with the most appropraite word.
  • percent
  • cents
  • century
  • centimeters
  • One dollar has the same value as 100 __?__.
  • There are 100 years in a __?__.
  • There are 100 __?__ in 1 meter.
  • One part out of 100 is 1 __?__.
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Notes: Take a clear picture or screenshot of your Cornell notes for this lesson. Upload it to the canvas. Zoom and pan as needed.

For a refresher on the Cornell note-taking system, click here.
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Reflect: Math Success