3.1.2 Solving Inequalities by Adding or Subtracting − Practice
1. Solve the inequality and graph the solutions. c − 5 ≥ 0.5
2. Solve the inequality and graph the solutions. d − 6 < − 0.5
3. Solve the inequality and graph the solutions. 15 + x > 7
4. Solve the inequality and graph the solutions. − 12 + p > 7
5. A plane can carry 360 passengers. On a particular day, there are 240 passengers on the plane. Write and solve an inequality to show how many more passengers the plane can carry. 6. A case holds up to 50 CDs. Crystal has 26 CDs in the case. Write and solve an inequality to show how many more CDs Crystal can put in the case. 7. Carlotta subscribes to the HotBurn music service. She can download no more than 11 song files per week. Carlotta has already downloaded 8 song files this week. Write, solve, and graph an inequality to show how many more songs Carlotta can download.
8. Rhonda has 335 stamps in her collection. She wants to collect at least 575 stamps. Write and solve an inequality to determine how many more stamps Rhonda must collect to reach her goal. Let d represent the number of stamps Rhonda must collect to reach her goal.
9. Ravi has $445 in his savings account. He wants to save at least $795. Write and solve an inequality to determine how much more money Ravi must save to reach his goal. Let d represent the amount of money in dollars Ravi must save to reach his goal.
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