Variable Expressions

a letter that represents an unknown value

• evaluate

• equivalent ratios

• variable

• substitution

• expression

math phrase that combines numbers AND variables (letters: 3b or 5x) by using (+, -, *, ÷). *does not have an equal sign (=)

• algebraic expression

• equivalent expressions

• reduce

• substitution

• ratio

replacing a variable with a number or expression

• equivalent fractions

• substitution

• evaluate

• equivalent expressions

• similar figures

math phrase that combines numbers by using +, -, *, or ÷

• ratio

• reduce

• expression

• equivalent expressions

• evaluate

Write an expression using a variable to represent the expression

Eleven decreased by k ​ (a)  

• k-11

• k/11

• 11-k

• k+11

a symbol for an unknown value; usually a letter (such as a, x, or y) is the symbol used

• constant

• variable

• coefficient

• term

A variable is a letter or symbol used to represent an unknown number.

• True

• False

Write an expression using a variable to represent the expression​ (a)  

g less than 8

• g-8

• g/8

• 8g

• 8+g

• 8-g

Which of the following are a part of an algebraic expression? (check all that apply!)

• a combination of terms seperated by either an addition or subtraction sign

• a series of integers being added together

• an expression that has a combination of terms containing a variable

• an equal sign

A symbol, usually a letter, used to represent one or more numbers is called a