/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 31 If \(9>3 v-3\), what is the g... [FREE SOLUTION] | 91Ó°ÊÓ

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If \(9>3 v-3\), what is the greatest possible integer value of \(v\) ?

Short Answer

Expert verified
The greatest possible integer value for \(v\) is 3.

Step by step solution

01

Add 3 to both sides of the inequality

We want to get rid of the \(-3\) on the right side of the inequality. To do this, we'll add 3 to both sides: \(9 + 3 > 3v - 3 + 3\).
02

Simplify both sides

On the left side, we have: \(12 > 3v\).
03

Divide both sides by 3

Now, we'll divide both sides of the inequality by 3 to isolate \(v\): \(\frac{12}{3} > \frac{3v}{3}\).
04

Reduce and simplify

After dividing both sides by 3, we get the inequality: \(4 > v \) which is equivalent to \(v < 4\).
05

Determine the greatest integer value for \(v\)

Since \(v < 4\), the greatest integer value for \(v\) would be just below 4. In this case, the greatest possible integer value for \(v\) is 3.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

SAT Mathematics Preparation
Preparing for the mathematics section of the SAT not only involves mastering core concepts like algebra and geometry but also honing your problem-solving skills to tackle a variety of questions, such as inequality problems. A strong grasp on inequality manipulation is crucial, as it's a topic frequently tested on the exam. When preparing, it's important to focus on understanding the steps to solve inequalities, the significance of keeping the inequality balanced, and knowing the rules that apply when you multiply or divide both sides of an inequality by a negative number (the sign flips!). Practice with various types of inequalities, be it linear or quadratic, to become comfortable in recognizing the quickest route to the answer.
Additionally, timing is key in the SAT, and learning shortcuts can save precious minutes. Getting acquainted with strategies like testing answer choices can often lead to quicker solutions when dealing with integer value determination questions. Remember, it's not just about getting the right answer but also about getting it efficiently. Dedicate time to timed practice sections, review your answers thoroughly, and identify areas for improvement to gear up for test day.
Inequality Manipulation
Inequality problems can sometimes seem daunting, but with a good understanding of inequality manipulation, these problems become much more approachable. The 'inequality manipulation' process involves applying operations to both sides of the inequality without changing its original meaning. In dealing with inequalities, the goal is to isolate the variable of interest, much like one would do in an equation.

It's crucial to remember that adding or subtracting the same number to both sides of an inequality does not affect the inequality sign. However, when you multiply or divide by a negative number, reverse the direction of the inequality. Another important point is when dealing with absolute values — they must be broken into separate cases. Understanding these subtleties is essential because a single misstep can lead to incorrect solution sets. Practice with these concepts helps to avoid common pitfalls and increases confidence in solving SAT math problems.
Integer Value Determination
When solving inequality word problems, it's not uncommon for questions to ask for the greatest or least possible integer value that satisfies the inequality. This aspect of integer value determination is about identifying which values a variable can take based on the constraints of an inequality. It's a two-fold process: solving the inequality and then considering the integer constraints. A systematic approach includes isolating the variable to one side and then listing possible values.

For example, if we determine that a variable is less than 4, like in the exercise, we need to determine the highest integer that is still smaller than 4, which would be 3. It's important to recognize that 'less than 4' does not include 4 itself. Approaching these problems with careful consideration of boundary conditions, meaning the highest or lowest number the variable can be while still satisfying the inequality, solidifies your understanding. This skill not only serves you well in SAT preparations but is also invaluable in higher-level mathematics and daily problem-solving situations.

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