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An open sentence is neither true nor false. It depends on the value of the variable. If you had 5=3 that would be a closed sentence which is false. If you had 5=5 that would be a closed sentence which is true. If you had x=3 then it is open to whether the x is a 5 or a 3.

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Q: Why an open sentence always has at least one variable?
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Why does open sentence always has at least one variable?

Because it is neither true or false until the variable is replaced with a specific value making the sentence true or false.


a number when substituded in to an open sentence makes a true statement?

An equation or an inequality that contains at least one variable is called an open sentence. ... When you substitute a number for the variable in an open sentence, the resulting statement is either true or false. If the statement is true, the number is a solution to the equation or inequality.


What is a open number sentence?

An open number sentence is a sentence which contains a variable. A variable is a unknown number but replaced with a letter and can be on either side of an equals sign.


What is an open number sentence?

An open number sentence is a sentence which contains a variable. A variable is a unknown number replaced with any letter and can appear on either side of the equals sign.


What is the number that can replace a variable?

Answer 1 == In an open sentence (an equation or inequality with a variable in it), when a number replacing the variable makes the sentence true, then it is a solution.


A replacement value for the variable in an open sentence?

domain


What is an equation which contains a variable called?

An open sentence.


What is the word for the definition the set of all replacements for the variable in an open sentence that results in a true sentence?

Solution.


What does open sentence mean?

In math, that refers to an equation which includes a variable. Such an equation may be true, or false, depending on the value assigned to the variable.


What is it called when an expression or equation contains a variable?

I'm pretty sure it's an open sentence.


Is time always an independent variable?

No. If you are studying waiting time, for example at a bank, the waiting time could be the dependent variable with the number of open windows as the independent variable.


What does number sentence mean?

A number sentence has a left side (Nominative) the equals (verb) and the right side (predicate). It can be an open sentence with a variable, a false statement or a true statement.