x X over 2
= 2
The numerical factor of a term is called the "coefficient."
the number next to a variable that multiplies the variable
Yes since a number and a variable and a number are a symbol.
The number is called the coefficient of the variable
A coefficient is a number that multiplies a variable.
a constant is a number with no variable
Depends on the problem.
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.
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.
The numerical factor of a term is called the "coefficient."
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.
Polonium contain 84 protons an electrons and a variable number of neutrons, depending on the isotope.
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
After it has lost an electron, a hydrogen ion contains one proton and a variable number of neutrons depending on the isotope (usually none).
After it has lost an electron, a hydrogen ion contains one proton and a variable number of neutrons depending on the isotope (usually none).
a variable minus a number and the same variable is b-6b= -5b
the number next to a variable that multiplies the variable