Chapter 6 Math Vocab
Terms in this set (20)
A comparison of two quantities by division ex:) 3:4
A ratio of two quantities having different KINDS of units ex) 60 miles in 3 hours
When a rate is simplified so that it has a denominator of 1
Quantities that have a constant ratio or rate
Quantities that do not have a constant rates or ratios
constant of proportionality
the constant ratio between quantities. Also called a unit rate.
when 2 ratios are equal
a two-dimensional drawing (2D) used to represent an object too large or too small to be drawn to actual size. ex) model of airplane
a three-dimensional model (3D) used to represent an object too large or too small to be drawn to actual size. ex) model of airplane
the ratio of the dimensions of the drawing or mode to the actual object. ex) 1 inch = 3 feet
the scale at its simplest fractional form. Both the numerator and the denominator must be in the same units!
a ratio that compares a number to 100. "Per" "cent" means "for every" "hundred"
a ratio comparing part of a quantity to the whole quantity
the percent proportion written as an equation with the % as a decimal
the amount by which the regular price of an item is reduced
a percentage of a sale price. The sales tax is added to the sale.
the amount of $ paid or earned for the use of $. For a saving account, interest is earned. For a credit card, interest is paid.
Percent of change
the percent an amount has increased or decreased in relation to the original amount.
% of Increase
a positive % change
% of decrease
a negative % change