 General Idea
 "Applications of Systems of Linear Equations" translates to solving word problems by
setting up and solving systems of linear equations.
 The same principles learned in
Sections 2.3 and 2.4: Word Problems
apply to this section. So review Sections 2.3 and 2.4 to remember how to solve word
problems.
 Some useful formulas are also given in Sections 2.3 and 2.4.
 How to Solve Word Problems Using Systems of Linear Equations
 Convert the word problem to 2 (or 3) equations in 2 (or 3) variables as in
Sections 2.3 and 2.4: Word Problems.
 Solve the system of linear equations as done in
Sections 4.1 and/or
Sections 4.2.
 Examples we might do in class
 2.3.6
 2.4.18
 2.4.28
 Review Exercise 36
 Problem
 Problem
