Math Problem Statement

Three coworkers work for the same employer. Their jobs are warehouse manager, office manager, and truck driver. The sum of the annual salaries of the warehouse manager and office manager is $83,000. The office manager makes $8,000 more than the truck driver annually. The annual salaries of the warehouse manager and the truck driver total $75,000

. What is the annual salary of each of the co-workers?

If there is no solution, enter NS. If there is an infinite number of solutions, enter IS.

Do not enter any commas in your answers.

Salary of Warehouse Manager:

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Salary of Office Manager:

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Salary of Truck Driver:

Solution

Let's define the variables for the salaries of each coworker:

  • Let WW be the salary of the warehouse manager.
  • Let OO be the salary of the office manager.
  • Let TT be the salary of the truck driver.

We are given three equations based on the information provided:

  1. The sum of the annual salaries of the warehouse manager and office manager is $83,000: W+O=83000W + O = 83000

  2. The office manager makes $8,000 more than the truck driver: O=T+8000O = T + 8000

  3. The annual salaries of the warehouse manager and the truck driver total $75,000: W+T=75000W + T = 75000

Now, let's solve this system of equations step-by-step.

Step 1: Substitute OO in Terms of TT

From the second equation, we know: O=T+8000O = T + 8000

Step 2: Substitute OO into the First Equation

Substitute O=T+8000O = T + 8000 into the first equation: W+(T+8000)=83000W + (T + 8000) = 83000 Simplify this to: W+T=75000W + T = 75000

This matches our third equation exactly, indicating we do not have an additional independent equation. Therefore, there could be multiple solutions, and we cannot solve for unique values of WW, OO, and TT based on the information given.

Thus, the answer is: Infinite Solutions (IS)

If you'd like more details on the approach or other possible interpretations, feel free to ask!


Additional Related Questions:

  1. How would the answer change if we had an extra condition relating the salaries?
  2. What if we only had two coworkers instead of three?
  3. Can you set up a similar problem involving different professions and salaries?
  4. How can we determine whether a system of equations has no solution, one solution, or infinitely many?
  5. Why is it important to have as many independent equations as unknowns in a system?

Tip: When dealing with systems of equations, check if each equation provides unique information to ensure there are enough independent conditions for a unique solution.

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Math Problem Analysis

Mathematical Concepts

Algebra
Systems of Linear Equations

Formulas

Substitution method in linear equations

Theorems

System of linear equations solutions (unique, none, infinite)

Suitable Grade Level

Grades 9-12