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Use the inequality to answer Parts 1-3.
−3(x−2)≤1/3
Part 1: Solve the inequality. Leave answer in terms of a whole number or reduced improper fraction.
Part 2: Write a verbal statement describing the solution to the inequality.
Part 3: Verify your solution to the inequality using two elements of the solution set.

User Hasyimi Bahrudin
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2 Answers

12 votes
12 votes

Final answer:

The inequality −3(x − 2)≤ 1/3 is solved by distributing the −3 and then isolating x to find that x ≤ − 17/9. This means any number less than or equal to − 17/9 will satisfy the inequality. Verification is done by substituting two elements from the solution set into the original inequality and confirming the statements are true.

Step-by-step explanation:

To solve the inequality −3(x−2)≤1/3, we first distribute the −3 across the parentheses and then isolate x.

Multiply through the parentheses: −3(x − 2) becomes −3x + 6.

−3x + 6 ≤ 1/3. Subtract 6 from both sides to get −3x ≤ − 17/3.

Divide both sides by −3: x ≤ − 17/9.

The solution to the inequality is x ≤ − 17/9.

In verbal terms, any number less than or equal to − 17/9 will satisfy the inequality.

To verify the solution, we can check two elements from the solution set:

Let x = − 2. Substituting into the original inequality, we get −3(− 2 − 2) ≤ 1/3, which simplifies to −3 ≤ 1/3, a true statement.

Let x = − 17/9. Substituting into the original inequality, −3(− 17/9 − 2) ≤ 1/3 simplifies to 1/3 <= 1/3, also a true statement.

User Oskenso Kashi
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3.2k points
11 votes
11 votes

Answer:


-3(x-2)\leq (1)/(3) \\x-2\geq 3\\x\geq 5

2. x is greater than or equal to 5.

3. If we use 5 and another number greater than it such as 10, we can use the original inequality to verify the solution inequality.


-3(5-2)\leq (1)/(3) \\-3(3)\leq (1)/(3)\\ -9\leq (1)/(3)


-3(10-2)\leq (1)/(3) \\-3(8)\leq (1)/(3)\\-24\leq (1)/(3)

Step-by-step explanation:

I hope you were able to see how I simplified the inequality. Just note that when multiplying or dividing on both sides and it requires changing to positive to negative or vice versa, then you have to flip the inequality sign

EX:
-4x\leq 12\\

When dividing by -4 to isolate x, you need to flip the sign also.


x\geq -3

User Nazli
by
2.8k points
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