Math Problem Statement

Translate verbal statements into inequalities and solve problems involving inequality solutions.

Solution

Here is the breakdown and solution for each question from the uploaded image:

Question 1:

"If -3 + n ≤ 25, which inequality represents the possible range of values for 4n - 12?"

  1. Solve for nn: 3+n25    n28-3 + n \leq 25 \implies n \leq 28
  2. Substitute n28n \leq 28 into 4n124n - 12: 4n124(28)12=1004n - 12 \leq 4(28) - 12 = 100 Thus, 4n121004n - 12 \leq 100.

Answer: B) 4n - 12 ≤ 100


Question 2:

"Which of the following numbers is NOT a solution to the inequality 12x7952\frac{1}{2} x - \frac{7}{9} \leq \frac{5}{2}?"

  1. Simplify inequality: 12x52+79\frac{1}{2}x \leq \frac{5}{2} + \frac{7}{9} Convert to common denominator: 79=1418,52=4518    52+79=5918\frac{7}{9} = \frac{14}{18}, \quad \frac{5}{2} = \frac{45}{18} \implies \frac{5}{2} + \frac{7}{9} = \frac{59}{18} 12x5918    x5918×2=599\frac{1}{2}x \leq \frac{59}{18} \implies x \leq \frac{59}{18} \times 2 = \frac{59}{9}
  2. Evaluate each number: 5996.56\frac{59}{9} \approx 6.56 Numbers greater than 6.566.56 are NOT solutions. 1616 does not satisfy this.

Answer: A) 16


Question 3:

"If -3a + 7 ≤ 5a − 17, what is the greatest possible value of 3a+73a + 7?"

  1. Simplify inequality: 3a+75a17    8a24    a3-3a + 7 \leq 5a - 17 \implies 8a \geq 24 \implies a \geq 3
  2. Find 3a+73a + 7 for a=3a = 3: 3(3)+7=163(3) + 7 = 16

Answer: A) 16


Question 4:

"Nine is not more than the sum of a number and 17."

  1. Convert to inequality: 9n+179 \leq n + 17
  2. Simplify: n8n \geq -8

Answer: D) 9 ≤ n + 17


Question 5:

"The product of 7 and number nn is no less than 91."

  1. Convert to inequality: 7n917n \geq 91
  2. Simplify: n13n \geq 13

Answer: C) 7n ≥ 91


Question 6:

"Which of the following inequalities represents the graph above?"

  1. Analyze graph: n5n \leq -5.

Answer: A) n ≤ -5


Would you like detailed steps for any of the questions above? Here are 5 related questions to expand your understanding:

  1. How do we convert verbal statements into inequalities systematically?
  2. Can you explain the relationship between inequalities and their graphs?
  3. What are strategies for solving compound inequalities?
  4. How can we verify a solution satisfies an inequality?
  5. What methods can simplify inequalities involving fractions?

Tip: Always isolate the variable step by step to maintain accuracy in solving inequalities.

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Math Problem Analysis

Mathematical Concepts

Inequalities
Solving Linear Inequalities
Graphing Solutions of Inequalities
Converting Verbal Statements to Mathematical Inequalities

Formulas

Simplification of linear inequalities (e.g., ax + b ≤ c)
Solving inequalities involving fractions
Graphing inequalities on a number line

Theorems

Properties of Inequalities (Addition, Subtraction, Multiplication, Division Rules)
Transitive Property of Inequalities

Suitable Grade Level

Grades 7-10