Math Problem Statement

Which of the following values are solutions to the inequality 4, is less than or equal to, minus, 7, plus, x, question mark4≤−7+x?

I., 5, II., 11, III., 4

I.5II.11III.4

Solution

Let's determine whether each of the given values satisfies the inequality 47+x4 \leq -7 + x.

Recall the inequality:

47+x4 \leq -7 + x This simplifies to: x11x \geq 11

Now, let's check each value:

I. x=5x = 5

Substitute x=5x = 5 into the inequality: 47+54 \leq -7 + 5 424 \leq -2 This is false, so x=5x = 5 is not a solution.

II. x=11x = 11

Substitute x=11x = 11 into the inequality: 47+114 \leq -7 + 11 444 \leq 4 This is true, so x=11x = 11 is a solution.

III. x=4x = 4

Substitute x=4x = 4 into the inequality: 47+44 \leq -7 + 4 434 \leq -3 This is false, so x=4x = 4 is not a solution.

Conclusion:

The only value that satisfies the inequality 47+x4 \leq -7 + x is II. x=11x = 11.

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

  1. How would the solution change if the inequality were 4<7+x4 < -7 + x?
  2. Can you solve a similar inequality, such as 35+x3 \leq -5 + x?
  3. What happens if we flip the inequality to 47+x4 \geq -7 + x?
  4. How does substituting different values of xx affect the truth of the inequality?
  5. What would happen if there was a coefficient in front of xx, like 47+2x4 \leq -7 + 2x?

Tip: Always substitute values carefully into inequalities and simplify step by step to check if they hold true.

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Math Problem Analysis

Mathematical Concepts

Inequalities
Algebra

Formulas

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Theorems

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Suitable Grade Level

Grades 7-9