Pre-Algebra
Personal financial literacy
Comparing salaries and lifetime income
20 practice questions
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Theory + worked examples
Comparing Salaries and Lifetime Income
Texas Pre-Algebra (TEKS) • Standard 7.13(B) • Financial Literacy
Comparing Salaries and Lifetime Income is a topic in Financial Literacy in the Texas Essential Knowledge and Skills. It is aligned to Standard 7.13(B), which requires students to compare salaries and estimate lifetime income.
Lifetime income is roughly a salary times the number of working years; more education is generally linked to higher earnings.
Theory
A salary is yearly pay; lifetime income is roughly salary times the number of working years.
More education is generally linked to higher lifetime income, though it has costs.
Education and income.
Salaries and lifetime income.
Lifetime income:
\[\text{lifetime income}\approx\text{salary}\times\text{working years}\]
Weigh education costs against higher earnings.
How to compare earnings
- Find each salary.
- Multiply by expected working years.
- Subtract education costs.
- Compare the net lifetime income.
Example 1 — Lifetime income
\(\$40{,}000\)/year for \(40\) years. Estimate lifetime income.
Solution
Multiply.
| \(40000\cdot40\) | \(=\) | \(\$1{,}600{,}000\) |
Example 2 — Compare
Which usually earns more: bachelor's or high-school only?
Solution
A bachelor's degree, on average.
Example 3 — Monthly
A \(\$48{,}000\) salary is how much per month?
Solution
Divide by \(12\).
| \(\dfrac{48000}{12}\) | \(=\) | \(\$4000\) |
Example 4 — Trade-off
What is a cost of more education?
Solution
Tuition and years not earning full-time.
Common pitfalls
Include education costs in the comparison.
Salary is yearly; lifetime income is cumulative.
Averages differ from individual outcomes.
Frequently asked questions
What is lifetime income?
Roughly salary times working years.
Does education affect income?
More education is generally linked to higher earnings.
A $48,000 salary per month?
\(\$4000\).
What are education's costs?
Tuition and years not earning full-time.
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