Math Problem Statement

Juanita has $25, and she makes $11 per hour. She needs at least $58 to buy new shoes. Write an inequality to determine how many hours Juanita must work to buy new shoes.

Solution

The problem is asking to set up an inequality to determine how many hours Juanita must work to afford new shoes, given:

  • She has $25.
  • She earns $11 per hour.
  • She needs at least $58 to buy new shoes.

Let hh represent the number of hours Juanita needs to work. Juanita’s total earnings would be her hourly wage, $11, multiplied by the number of hours she works, hh, plus the $25 she already has. This total needs to be greater than or equal to $58 (since she needs at least $58).

The inequality can be set up as:

11h+255811h + 25 \geq 58

Now, we can solve this inequality to find hh.

  1. Subtract 25 from both sides: 11h582511h \geq 58 - 25 11h3311h \geq 33

  2. Divide both sides by 11: h3311h \geq \frac{33}{11} h3h \geq 3

Therefore, Juanita must work at least 3 hours to have enough money to buy the shoes.

Would you like further explanation or have any questions? Here are some related questions to explore further:

  1. How can we solve inequalities with variables on both sides?
  2. What happens if Juanita needs exactly $58 instead of at least $58?
  3. How do you interpret the meaning of an inequality in a real-life scenario?
  4. What is the difference between an equation and an inequality in this case?
  5. How can we apply this method to other real-life budgeting situations?

Tip: When solving inequalities, always be mindful of whether you need to reverse the inequality symbol when multiplying or dividing by negative numbers.

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Math Problem Analysis

Mathematical Concepts

Algebra
Inequalities

Formulas

11h + 25 ≥ 58

Theorems

Properties of Inequalities

Suitable Grade Level

Grade 6-8