Since the width of each math textbook is 0.75 you have to find a number that multiplied by 0.75 will be equal 18
so, 0.75 x 24 = 18
18 books can be placed in the shelf
Answer:
- 9 < t < 5
Step-by-step explanation:
Isolate | t + 2 | by subtracting 4 from both sides
| t + 2 | < 7
Inequalities of the type | x | < a always have a solution of the form
- a < x < a, hence
- 7 < t + 2 < 7 ( subtract 2 from all 3 intervals )
- 9 < t < 5
