Math Problem Statement
Solution
The problem involves two people, Emma and Madeline, and their savings over time. Let's break it down:
-
Emma's savings:
Emma started with $65 and saves $10 each week. The total savings of Emma after weeks can be modeled by a linear equation: where represents the amount Emma has saved after weeks. -
Madeline's savings:
Madeline started with $25 and saves $15 each week. Her savings after weeks can be modeled by: where represents the amount Madeline has saved after weeks. -
Comparing the savings:
The next step is to determine when Emma has more savings than Madeline, which means solving for when .
To solve this inequality: Simplify it: Divide by 5: or equivalently,
So, Emma has more savings than Madeline when .
Answer Summary:
- Emma's equation:
- Madeline's equation:
- Interval when Emma has more savings:
Would you like any further clarification or additional questions based on this? Here are some possible next steps:
- What happens after 8 weeks? How do the savings compare?
- How would the equations change if the savings rates were different?
- What if Emma started with $70 instead of $65?
- How could you graph these two equations to visualize the comparison?
- How would the result change if Madeline saved only $5 per week?
Tip: When solving inequalities, always pay attention to the direction of the inequality when you divide or multiply by negative numbers.
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Math Problem Analysis
Mathematical Concepts
Linear Equations
Inequalities
Algebra
Functions
Formulas
E(t) = 65 + 10t
M(t) = 25 + 15t
Theorems
Solving linear inequalities
Solving for when one function is greater than another
Suitable Grade Level
Grades 7-9
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