consecutive integers
integers in counting order.
equivalent equations
equations that have the same solution.
formula
an equation that states a rule for the relationship between certain quantities.
literal equation
a formula or equation with several variables.
multi-step equations
equations with more than one operation.
percent of change
when an increase or decrease is expressed as a percent.
percent of increase
the ratio of an amount of increase to the previous(original) amount expressed as a percent.
rate
the ratio of two measurements having different units of measure.
scale
the relationship between the measurements on a drawing or model and the measurements of the real object.
solve an equation
the process of finding all values of the variable that make the equation a true statement.
unit rate
a ratio of two quantities, the second of which is one unit.
dimensional analysis
the process of carrying units throughout a computation.
extremes
in the ratio a:b = c:d, a and d are the extremes.
identity
an equation that is true for every value of the variable.
means
in the ratio a:b = c:d, b and c are the means.
number theory
the study of numbers and the relationships between them.
percent of decrease
the ratio of an amount of decrease to the previous (original) amount, expressed as a percent.
proportion
an equation of the form a:b= c:d, where b and d cannot equal 0, stating that two ratios are equivalent.
scale model
a model used to represent an object that is too large or too small to be built at actual size.
unit analysis
the process of including units of measurement when computing.
weighted average
the sum of the product of the number of units and the value per unit divided by the sum of the number of units, represented by M.
ratio
a comparison of two numbers by division.