13–61 (Odds Only) on pp. 223–226
Solve each inequality. Graph your solutions.
13. w + 3 > 9
W + 3 – 3 > 9 – 3
W > 6
15. -4 < t + 8
-4 – 8 < t + 8 – 8 t > -12
17. 22.3 ≤ 13.7 + h
22.3 – 13.7 ≤ 13.7 – 13.7 + h h ≥ 8.6
19. You have at most $15.00 to spend. You want to buy a used CD that costs $4.25. Write and solve an inequality to find the possible additional amounts you can spend. a = Additional funds you can spend. a ≤ 15 – 4.25
21. -6t > 18
-6t-6 > 18-6 t < -3
23. - h4 < 6
- h4 × -4 < 6 × -4 h > -24
25. - 35n ≥ - 9
- 35n ÷ - 35 ≥ - 9 ÷ - 35 n ≤ 15
27. -17.1m < 23.8
-17.1m ÷ -17.1 < 23.8 ÷ -17.1 m > 1.392
Solve each inequality.
29. 4k – 1 ≥ -3
4k – 1 + 1≥ -3 + 1 4k4 ≥ -24 k ≥ -0.5 31. 3t