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Big Ideas Math Integrated I, 2016 View details

2. Solving Inequalities Using Addition or Subtraction

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Exercise 26 Page 65

Use the verbal model to write an inequality.

Inequality: 19.76+x ≥ 25
Solution: x ≥ 5.24

Practice makes perfect

In order to get free shipping from the website, we need to spend at least $25. This can be expressed using an inequality. ... ≥ 25Let x be the additional money we need to spend. Since the price of the book we ordered is $19.76, we can rewrite our inequality. 19.76+x ≥ 25 Let's solve this inequality!

19.76+x ≥ 25

SubIneq

LHS-19.76≥RHS-19.76

19.76+x -19.76 ≥ 25-19.76

SubTerms

Subtract terms

x≥5.24

We need to purchase at least $5.24 more worth of books to get the free shipping.