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# What is a double inequality?

Top Answer
###### Answered 2012-08-28 17:39:22

A double inequality is an inequality where there are two signs, as opposed to one.

Ex: an inequality could be 3x < 15

A double inequality could be 3x < 15 < x + 20

If you'd want to solve that double inequality, you split it into to expressions:

3x < 15 and x + 20 > 15

Then just solve.

x < 5 and x > -5

-5 < x < 5

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## Related Questions

Substitute the values of the variables into the inequality. If the inequality is true then they are a solution, if not, they are not.Substitute the values of the variables into the inequality. If the inequality is true then they are a solution, if not, they are not.Substitute the values of the variables into the inequality. If the inequality is true then they are a solution, if not, they are not.Substitute the values of the variables into the inequality. If the inequality is true then they are a solution, if not, they are not.

"x281" is an expression, not an inequality. An inequality is supposed to have an inequality sign, such as "&lt;" or "&gt;".

A strict inequality.A strict inequality.A strict inequality.A strict inequality.

If the absolute value inequality is of the form where the absolute value of the difference between a variable (X) and some constant (a) is compared to another constant (b) eg |X - a| compared with b, then if the comparison is &lt; or &acirc;&permil;&curren;, the compound inequality is a double inequality of the form c &lt; X &lt; d (or &acirc;&permil;&curren;), and if the comparison is &gt; or &acirc;&permil;&yen;, the compound inequality is a disjoint inequality of the form X &lt; c or X &gt; d (or including the equals). In both cases, c = b - a, d = b + a (&gt;c)

There is no inequality since there is no inequality sign.

algebraic inequality, is an inequality that contains at least one variable.

The inequality is maintained with the direction of the inequality unchanged.

== == Inequality improves two quantities.

5x20 is not an inequality, it is an expression.

There is no inequality and so there cannot be a graph of the inequality.

This isn't an inequality, but a mathematical "expression". In order to have an inequality that can be solved, there must be an inequality symbol between two mathematical expressions. Nancy

do you think it is deviant for our government to have such inequality?

No. An inequality must have an inequality sign, for example, "&lt;".

There is no inequality in the question so there cannot be an answer.

Discourse on Inequality was created in 1754.

The answer will depend on what you wish to substitute in place of the inequality.

An inequality has no magnitude. A number can be greater than or equal to -5, but not an inequality.

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