Concepts Covered:
- Basic Solving Techniques – Similar to solving equations, but when multiplying or dividing by a negative number, the inequality sign must be flipped.
- Interpreting Solutions – Solutions to inequalities represent a range of values, not just a single number.
- Rounding for Practical Solutions – Some answers require whole numbers (e.g., number of packages, people, or objects).
Skills Covered:
- Solve inequalities using algebraic manipulation.
- Interpret solutions in real-world contexts.
- Round up when necessary in practical situations.
Example Problems:
- Ty must walk at least 15 km a day and walks $4$ km per hour. What is the minimum number of hours he must walk?
- A geologist needs at least 25 rock samples but has already collected $8$. How many more does he need?