The document provides instructions for practicing Khan Academy topics on systems of equations word problems. It also reminds the student to make progress on homework 4.1-4.2 which is due on Friday for full credit. Examples are given for solving systems of equations by substitution and word problems involving jeans/shirts and movie tickets.

1. Today:
 Practice Khan Academy Topics
 Systems of Equations Word Problems
 Make Progress on CW 4.1- 4.2--Due by
Friday for full credit.
But first,
 Final Exam Scores
March 30, 2016

3. x = -3
y = 7

4. -1 -2

5. 6 -4

6. SOLVING SYSTEMS BY SUBSTITUTION:

8. Use ‘g’ for gloves and ‘h’ for hats.
Equation 1: 2g + 4h = $42.00
Equation 2: 2g + 2h = $30.00
0g + 2h = $12.00
Hats are $6.00 each
2g + 24 = $42.00
Plug both values in
and check for
equality.

9. SOLVING SYSTEMS WORD PROBLEMS:
Kelly went back-to-school shopping this weekend. She
spent $160 on jeans and shirts. She bought a total of
12 items, with jeans costing $16 and shirts costing $12.
How many jeans and shirts did she buy?
1. Mark
the text.
2. Label
variables.
j = jeans
s = shirts
3. Create
equations.
16j + 12s = 160
What’s the 2nd equation?j + s = 12
4. Solve.
5. Check.

10. Mrs. Smith took her family and friends to the
movies. There were a total of 12 people. Children
tickets cost $5 and adult tickets cost $10. She spent
a total of $95. How many adults & how many
children went to the movies?
1. Mark
the text.
2. Label
variables.
3. Create
equations.
4. Solve.
5. Check.