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45 Cards in this Set

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Density Property

The property that states that because any two real numbers, there is always another real number

Scale

The ratio between two sets of measurements. (Example: 1 cm : 5 mi)

Irrational NUmbers

A number that cannot be expressed as a ratio of two integers or as a repeating or terminating decimal.

Scale drawing

A drawing that uses a scale to make an object smaller than or larger than the real object

Rational NUmbers

Any number that can be expressed as a ratio of two numbers.

Similar

Figures with the same shape but not neccaryly the same size

Perfect square

square of a whole number

cross product

THe product of numbers on the diagonal when comparing two ratios.

Real number

a rational or irrational numnber

Unit price

a unit rate used to compare prices

reciprocal

the upside down of a fraction

unit rate

a rate in which the second quantity in the caparison is one unit

percent

these are ratios that compare a number to 100

rate

a ratio that compares 2 quantities measured in different units

Percent change

the ratio of the amount of change to the original amount

proportion

an equation that states the 2 ratios are equal

commission

a fee paid to a person who makes a sale

equivalent ratio

ratios that name the same comparison

commission rate

this is usually a percent of the selling price

ratio

a comparison of 2 quanities by division

sales tax

the tax on the sale of an item or service

rate of interest

the percent charged or earned on the principal

withholding tax

tax deducted from a person's earnings as an advance payment of income tax

principal

amount of money borrowed or invested

simple interest

the money you owe on an amount of money u borrowed

algebracic expression

an expression that contains at least one variable

scientific notation

a method of writing very large or very small numbers by using powers of 10

order of operations

the rules to follow when evaluating an expression or equation

exponential form

a number is in this form when it is written with a base and an exponent

evaluate

means to solve

base

when a number is raised to a power, the number that is used as a factor is this

assocaitive property

the property that states that the grouping can change places but the sun or product stays the same

absolute value

the distance od a number from zero on a number line

commmunative property

the property that states the number can change places but the sum or product stays the same

opposite

the numbers that are = distance from zero on a number ine

distrubutive property

the property that states if you mulpitpy a sun by the number outside by inside

integer

the set whole numbers including 0 and their opposites

exponent

the number that indicates how many times the base is used as a factor

factor

numbers that are being multiplied together

numerical expression

an expression that contains only numbers and operations

difference

the answer to subtracting problem

variable

a letter or symbol that means a number

quotient

the answer to a division problem

sum

the answer to an addition problem

product

the answer to a multiplication problem