1.3
Solving Equations
Properties
Reflexive:
Symmetric:
Transitive:
Substitution:
aa
abthenbaIf ,
cathencbandbaIf ,
If a = b, then b can be substituted anywhere for a
Properties
Addition:
Subtraction:
Multiplication:
Division:
cbcathenbaIf
cbcathenbaIf
bcacthenbaIf
0; cc
b
c
athenbaIf
Solving
Solve: 4784813 yy
Solving
Solve: tt 4932
Solving
Solve: )92(3)132(73 xxx
Solving
Solve: 706)3(2 y
Solving for a variable
Solve for h: )(2
121 bbhA
Solving for a variable
Solve for b1: )(2
121 bbhA
Application
A dog kennel owner has 100 ft of fencing to enclose a rectangular dog run. If the owner wants it to be 5 times longer than wide, what are the dimensions?
Application
The measures of the angles of a triangle are in the ratio of 4:5:6. Find the measure of all three angles.
Application
Two cars leave a house at the same time traveling opposite directions. One car travels at 35mph while the other travels at 45mph. How long will it take them to be 200 miles apart?
Exit Slip
I gave 3 examples of real-world application. What other situations can you think of that would require the same type of application?
Homework
8/27: #1 Rules8/28: No Homework8/24: #2 Wkst 1.3