Khan Academy
Khan Academy: Algebra: Systems and Rate Problems 2
This video demonstrates how to set up and solve a system of equations in order to solve a word problem concerning rates. [10:04]
Khan Academy
Khan Academy: Algebra: Systems and Rate Problems 3
This video demonstrates how to set up and solve a system of equations in order to solve a word problem concerning rates. [4:56]
Khan Academy
Khan Academy: Algebra: Officer on Horseback
This video demonstrates how to set up and solve a system of equations in order to answer a question posed in a word problem. The solution utilizes the equation d=rt. [8:54]
Khan Academy
Khan Academy: Algebra: Two Passing Bicycles Word Problem
This video demonstrates how to apply systems of equations to a word problem about two people passing each other on bicycles. The problem also involves constant speeds and distances. [5:39]