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Big Ideas Math: Modeling Real Life, Grade 7

BI

Big Ideas Math: Modeling Real Life, Grade 7 View details

Chapter Review

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Exercise 33 Page 174

Substitute - 3 into the given inequality and then simplify.

Yes, see solution.

Practice makes perfect

We can determine whether n= - 3 is a solution by substituting it into the inequality and simplifying using the order of operations.

6÷ n ≤ - 5

n= - 3

6÷ ( - 3) ≤ - 5

a÷ b=a/b

6/- 3 ≤ - 5

MoveNegDenomToFrac

Put minus sign in front of fraction

- 6/3 ≤ - 5

Calculate quotient

- 2 ≤ - 5 ✓

Since - 2 is less than or equal to - 5, this means that n= - 3 is a solution.

Subchapter links

1 Solving Equations Using Addition or Subtraction p.173

2 Solving Equations Using Multiplication or Division p.173

3 Solving Two-Step Equations p.174

4 Writing and Graphing Inequalities p.174

5 Solving Inequalities Using Addition or Subtraction p.174-175

6 Solving Inequalities Using Multiplication or Division p.175

7 Solving Two-Step Inequalities p.175