Math Problem Statement

Select the correct answer.

Darren is going to the state fair. Each ride costs $6 to ride, and each exhibit costs $3 to view. Darren can spend at most $84 at the fair.

The inequality and graph that represent this situation are shown, with x representing the number of rides Darren can ride and y representing the number of exhibits he can view.

6x + 3y ≤ 84

A linear graph of a solid boundary line intersects X-axis at the unit (15, 0) and Y-axis at the unit (0, 29)

Which solution is valid within the context of the situation?

A. (9,10) B. (8.5,11) C. (11,-2) D. (-3,15)

Solution

To determine the correct solution within the context of this situation, let's evaluate each option based on the inequality 6x+3y846x + 3y \leq 84 and the context.

Step 1: Check the inequality condition 6x+3y846x + 3y \leq 84:

  1. Option A: (9,10) 6(9)+3(10)=54+30=846(9) + 3(10) = 54 + 30 = 84 Since 848484 \leq 84, this satisfies the inequality.

  2. Option B: (8.5,11) 6(8.5)+3(11)=51+33=846(8.5) + 3(11) = 51 + 33 = 84 Since 848484 \leq 84, this also satisfies the inequality.

  3. Option C: (11, -2) 6(11)+3(2)=666=606(11) + 3(-2) = 66 - 6 = 60 While this does satisfy the inequality 608460 \leq 84, the context of the situation indicates that yy (the number of exhibits) cannot be negative. Therefore, this option is not valid in this context.

  4. Option D: (-3,15) 6(3)+3(15)=18+45=276(-3) + 3(15) = -18 + 45 = 27 Although 278427 \leq 84, the context also requires that both xx (the number of rides) and yy be non-negative, so this option is also not valid.

Conclusion:

The valid options that satisfy both the inequality and the context of the problem are:

  • A. (9,10)
  • B. (8.5,11)

Since both A and B are valid solutions, the problem does not specify if we need integer values only. However, if integer solutions are preferred, Option A would be more appropriate.

Final Answer:

A. (9,10)

Would you like a further breakdown on any part of this answer, or do you have any questions?


Here are 5 additional related questions:

  1. What are the possible integer solutions for xx and yy that satisfy the inequality 6x+3y846x + 3y \leq 84?
  2. How would the inequality change if each ride cost $5 and each exhibit cost $4?
  3. What is the maximum number of rides Darren can go on if he views 5 exhibits?
  4. How would the graph of this inequality change if Darren’s budget increased to $100?
  5. If Darren wanted to spend exactly $84, what are the possible combinations of rides and exhibits he could choose?

Tip: When working with inequalities, always consider the context to ensure solutions make practical sense (e.g., non-negative values in real-world contexts).

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Inequalities
Graphing Linear Inequalities

Formulas

Linear inequality 6x + 3y ≤ 84

Theorems

Non-negative solution constraint in inequalities

Suitable Grade Level

Grades 8-10