# Chapter one math flash cards

## 15 terms

### Variable

A letter or symbol used to represent a number.

### Algebraic Expression

A mathematical phrase involving at least one variable and sometimes numbers and operation symbols.

### Power

An expression that represnts repeated multiplication of the same factor

### Base

The number that is used as a factor in a a repeated multiplication

### Exponent

The number of a variable that represents the number of times the base of a power is used for

### Order of operations

Rules for evaluating an expression involving more than one operation

### Equation

A mathematical sentence that contains an equal sign

### Inequality

a mathmatical problem that contains ≥ (is greater than or equal to.) ≤ (is less than or equal to.) >(is greater than.) < (is less than.)

### Open sentence

an equation or an equality that contains an algebraic expression

### Solution of an equation

a # that produces a true statement when it is substituted for the variable in the equation (85)

### Formula

a group of symbols that make a mathematical statement

### Rate

A fraction that compared two quantites mesured in diffrent units

### unit rate

a rate that has a denominator of 1

### verbal model

describes real-world situation using words as labels and using math symbols to relate the words

### solution of an inequality

a number that produces a true statement when it is substituted for the variable in the inequality