2
12
In the expression 5-4t it is t that is the variable
-2
A variable expression for 5 divided by r would be 5/r. In algebra, when a number is divided by a variable, it is represented as the number (in this case, 5) divided by the variable (r). This expression shows the quotient of 5 and r, where r can be any real number except 0 to avoid division by zero error.
Expressed algebraically, this would equal 7s - 5.
12
In the expression 5-4t it is t that is the variable
-2
A variable expression.
In the expression 5x + 3, the coefficient is 5.
An expression for Sally gave away 5 apples is Sally - 5, or S-5. This is saying that S, or Sally, lost 5 apples.
It is an expression with a variable, x.It is an expression with a variable, x.It is an expression with a variable, x.It is an expression with a variable, x.
In the expression (5 + 3b), the coefficient is the number that multiplies the variable (b). Here, the coefficient is (3). The term with the variable is (3b), while (5) is a constant term and does not have a coefficient associated with a variable.
It is a variable expression.
5 = x
In the expression 5 + y + 8, y is a variable. We know how much 5 and 8 are, those are definite quantities. Only y has an unknown, and hence variable value.
A combination of numbers, a variable, and at least one operation can be represented mathematically as an expression. For example, in the expression ( 3x + 5 ), ( 3 ) and ( 5 ) are numbers, ( x ) is the variable, and the operation is addition. This expression illustrates how numbers and a variable can interact through mathematical operations.