Question

7) Solve 3x + 5 < 20
Make sure to write your inequality so that x comes first.
(2 points)

8) Solve 2x - 4 greater than or equal to 10 (1 point)
A) x greater than or equal to 7
B) x ≤ 7
C) x greater than or equal to 3
D) x ≤ 3
E) x greater than or equal to 52
F) x ≤ 52
11) Evelyn is taking a trip on an airplane. To avoid fees, her suitcase must weigh 50 pounds or less. The suitcase with her clothes weighs 34 pounds. She wants to pack some books for her trip. Each book weighs 2 pounds. Write and solve an inequality to find out how many books Evelyn can bring. Use b as your variable and make sure it comes first.

Write your final answer (solved inequality) below that includes: variable, inequality symbol, and number.
(2 points)

Answer:______

Answer 1

7) 3x + 5 < 20
3x < 15
x < 5

8) 2x − 4 ≥ 10
2x ≥ 14
x ≥ 7
Answer: A) x ≥ 7

11) Let b = number of books. 34 + 2b ≤ 50
2b ≤ 16
b ≤ 8

Answer: b ≤ 8 (so she can bring at most 8 books)