Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Rates and Ratios
Find a quick, concise explanation of rates and ratios. Examples are given and clearly explained.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Relation
Find a quick, concise explanation of a relation. Examples are given and clearly explained.
National Council of Teachers of Mathematics
The Math Forum: Means Proportional and Geometric Means
Dr. Math helps a student discover the meaning of the mean proportional of two numbers. Detailed explanation with examples.
Purple Math
Purplemath: Proportions: Introduction
Explains the basics and terminology of proportions.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Proportions
Find a quick, concise explanation of proportions. An example is given and clearly explained.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Unit Rate
Find a quick, concise explanation of unit rates. An example is given and clearly explained.