Solving algebraic inequalities

In summary, algebraic inequalities are statements that compare two quantities using inequality symbols. To solve them, the variable must be isolated and the same operation must be performed on both sides of the inequality. There are two main methods for solving algebraic inequalities - the graphical method and the algebraic method. Some common mistakes to avoid include not flipping the inequality symbol, not distributing correctly, and not simplifying expressions. To check if the solution is correct, you can substitute it back into the original inequality or graph it on a number line.
  • #1
Elihu5991
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Homework Statement


Solve the following inequalities. Do each one algebraically then check your answers using your calculator's ability (Casio Classspad 330) to solve the inequalities and/or by viewing a suitable graph on your calculator.


Homework Equations


SEE IMAGE


The Attempt at a Solution



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  • #2
Your last check should read
[itex]10 + 5 \geq \frac{2(10 + 14)}{{\color{red} {10}}}[/itex]
not
[itex]10 + 5 \geq \frac{2(10 + 14)}{{\color{red} 2}}[/itex]
 
  • #3
Thank you so much! How could I miss it.

Is there anyway that I can thumbs-up/kudos/support in any way before I close the thread?
 
Last edited:

What are algebraic inequalities?

Algebraic inequalities are mathematical statements that compare two quantities using inequality symbols such as <, >, ≤, or ≥.

How do you solve algebraic inequalities?

To solve an algebraic inequality, you need to isolate the variable on one side of the inequality symbol and then perform the same operation on both sides of the inequality to maintain its balance. The solution is the set of values that satisfy the inequality.

What are the different methods for solving algebraic inequalities?

The two main methods for solving algebraic inequalities are the graphical method and the algebraic method. In the graphical method, the solutions are represented on a number line. In the algebraic method, mathematical operations are used to isolate the variable and determine the solution.

What are the common mistakes to avoid when solving algebraic inequalities?

Some common mistakes to avoid when solving algebraic inequalities include forgetting to flip the inequality symbol when multiplying or dividing both sides by a negative number, not distributing correctly when using the distributive property, and not properly simplifying the expressions on both sides of the inequality.

How do you check if the solution to an algebraic inequality is correct?

To check if the solution to an algebraic inequality is correct, you can substitute the solution back into the original inequality and see if it results in a true statement. You can also graph the solution on a number line and see if it satisfies the given inequality.

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