Algebra 1 3-4 Solving Multi-Step Inequalities
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5 (1 rating)
by Matthew Richardson
| 23 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.
The outlined content above was added from outside of Formative.
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Solve It! Math Club members are selling Pi Day T-shirts for $7.50 each. The goal is to raise $500 by Friday. The figure shows how much they have raised by Wednesday. What is the minimum number of shirts they must still sell in order to reach their goal?
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Problem 1 Got It?
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Problem 2 Got It?
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Problem 3 Got It?
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Problem 4 Got It? Reasoning: The first step in solving Problem 4 was to subtract 3n from each side of the inequality. What else could have been the first step in solving the inequality? Explain.
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Problem 5 Got It?
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Problem 5 Got It?
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Reasoning: Can you solve the inequality 2(x - 3) ≤ 10 without using the Distributive Property? Explain.
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Error Analysis: Your friend says that the solutions of the inequality -2(3 - x) > 2x - 6 are all real numbers. Do you agree with your friend? Explain. What if the inequality symbol was ≥ ?
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Review Lesson 3-3: Solve the inequality.

-8 ≤ y
-8 ≥ y
-72 ≥ y
-72 ≤ y
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Review Lesson 1-3: Match each number set into its number family.
  • the nonnegative integers
  • the counting numbers
  • ..., -3, -2, -1, 0, 1, 2, 3, ...
  • Natural Numbers
  • Whole Numbers
  • Integers
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Vocabulary Review: Decide if the inequality symbol will change when you solve each inequality. Categorize the inequalities appropriately.
  • 3t < 6
  • -8s < 4
  • 5x ≤ -10
  • -4 ≤ -2a
  • Reverse
  • Stay the same
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Use Your Vocabulary: Use the words at least or at most to complete each sentence.
  • at least
  • at most
  • You must be __?__ 18 years of age to vote in a national election.
  • An elevator can safely carry __?__ 15 people.
  • When water boils, you know the temperature is __?__ 212°F.
  • If all books cost $3 and Jane has $20, she can buy __?__ books.
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Use Your Vocabulary: Now match the appropriate inequality symbol with each sentence.
  • You must be __?__ 18 years of age to vote in a national election.
  • An elevator can safely carry __?__ 15 people.
  • When water boils, you know the temperature is __?__ 212°F.
  • If all books cost $3 and Jane has $20, she can buy __?__ books.
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10 pts
Reflection: Math Success
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