Envision Math 2.0: Grade 6, Volume 1
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Envision Math 2.0: Grade 6, Volume 1 View details
7. Solve Inequalities
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Exercise 8 Page 220

Substitute each value from the replacement set one at a time into the inequality to verify if it is true or false.

w=4.3 and w=5.3

Practice makes perfect
We want to verify if any values contained in the replacement set are solutions of this inequality. We will replace the variable with each value from the set and check if the inequality is true for any of them.
w w<8 Check True or False?
4.3 4.3? <8 4.3 < 8 True
5.3 5.3? <8 5.3 < 8 True
8.3 8.3? <8 8.3 ≮ 8 False
9 9? <8 9 ≮ 8 False

The inequality is true if w=4.3 and when w=5.3.