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What is the definition for variable?
the def for variable is a letter or symbol used to represent a missing number in an algebrac expression
What is the variable expression to represent the number of pounds in y ounces?
16x
What algebraic expression for the number of muffins that are left what quantity do you need to represent with a variable?
X+6. Variable (x)
What does the variable represent in an addition or subtraction expression?
it is the number you would use to solve the problem
What is a number that is multiplied by a variable in an expression?
The number is called the coefficient of the variable
What is an expression that contains a variable a number and at least one operation?
That looks like the description of an EXPRESSION. However, an expression need not have "at least one operation"; a single number, or variable, is a perfectly valid expression.
What do you call replacing a variable in an expression by a number?
A variable is a letter that represents a number. An expression that contains at least one variable is called variable expression, also called algebraic expression. A variable expression has one or more terms. A term is a number, a variable, or a product of numbers and variables. For example,3(x^2)y + 2xy + x - 7 is a variable expression, where you have 4 terms.When working with variable expression, you often use the substitution principle:If a = b, then a may be replaced by b in any expression.The set of numbers that a variable may be represent is called replacement set, or domain, of the variable. To evaluate a variable expression, you replace each variable with one of its values and simplify the numerical expression that results.Example: Evaluate the expression 2x - 4y for x = 5 and y = -9.Solution:2x - 4y= 2(5) - 4(-9)= 10 + 36=46
What is the number that is multiplied by the variable in an algebraic expression?
It is the coefficient of the variable
What does a variable represent in math?
any number at all
What is to replace a variable with a number or anotherexpression in an expression?
The term for replacing a variable with another value or expression is "substitution."
What is find the numerical variable of an expression?
It is a poorly worded question. Any number in an expression can be a numerical variable.
Does a variable expression consist only of numbers?
A variable expression has at least one variable in it (which is usually a letter that stands for an unknown number).
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