Unit 3 Inequality Review

Gina is training for her swim team. Her goal for this week is to swim a minimum of 20 laps. She already swam 8 laps this week. Which inequality could be used to determine the mean number of laps, x, she would need to swim each day for 4 more days to achieve her goal?

• 4x + 8 ≥ 20

• 4x + 8 > 20

• 4x – 8 ≥ 20

• 4x + 8 ≤ 20

Use the inequality below to answer the question.

0.03g + 0.4 < 10

• {129, 238, 350}

• {324, 281, 143}

• {254, 315, 207}

• {119, 217, 335}

Write and solve the algebraic inequality: The sum of -6 and a number is at least -42.

• -6 - x > -42; x > -36

• -6 + x ≥ -42; x ≤ -36

• -6 - x < -42; x > -36

• -6 + x ≥ -42; x ≥ -36

Which number line best represents the solutions to 8 < -3x + 2?

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Which is not a solution for the inequality below?
 $5\ \frac{3}{4}\ -\ 2w\ +4\ \le\ -3\ \frac{1}{4}$  

• 7.32

• 6 ½

• 5 ½

• 8.9

• x ≤ 175

• x ≥ 175

• x ≥ -175

• x ≤ -175

• 0

• -3 1/2

• -2 1/2

• -1

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• -10

• 7/9

• -15

• 12