Math Problem Statement

You earn $8.50 an hour at the sub shop. Write and solve an inequality that represents the number of hours you need to work to earn $187 to buy a tablet computer.

Solution

The question is asking you to model an inequality that represents how many hours you need to work to earn $187 at a rate of $8.50 per hour.

Let's break it down:

  • You earn $8.50 per hour.
  • You need to earn $187.

To find the number of hours, let hh represent the number of hours you need to work. The total earnings from working hh hours is 8.50h8.50h. The inequality can be written as:

8.50h1878.50h \geq 187

Now, solve for hh:

h1878.50h \geq \frac{187}{8.50}

After solving:

h22h \geq 22

Thus, you need to work at least 22 hours to earn $187.

Would you like more details on how to solve inequalities or have further questions on this topic?

Here are 5 related questions:

  1. How do you solve inequalities with fractions?
  2. What are the differences between strict and non-strict inequalities?
  3. How can you interpret inequalities graphically?
  4. What happens if you increase your hourly wage in this scenario?
  5. How do you solve systems of inequalities?

Tip: When solving inequalities, always remember to flip the inequality symbol when multiplying or dividing by a negative number.

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Math Problem Analysis

Mathematical Concepts

Algebra
Inequalities
Linear Equations

Formulas

Earnings = Hourly Rate * Hours Worked
Inequality: Earnings ≥ $187

Theorems

Solving Linear Inequalities

Suitable Grade Level

Grades 6-9