1. Coordinate Algebra Day 11
Opening:
Begin working on Tuesday’s warm-ups.
Have your homework out and fill in the “Homework Check” sheet with the appropriate answers.
Get out paper to take notes on “Writing Equations & Inequalities”

2. Review HW

3. Creating Equations

4. Consecutive Number Problems
If the numbers are consecutive use:
1st number = x
2nd number = x + 1
3rd number = x + 2
etc

5. Consecutive Number Problems
If the numbers are consecutive ODD:
1st number = x
2nd number = x + 2
3rd number = x + 4
etc

6. Consecutive Number Problems
If the numbers are consecutive EVEN:
1st number = x
2nd number = x + 2
3rd number = x + 4
etc

7. Example 1
The sum of 3 consecutive even numbers add up to Find the three numbers.
1st 332
2nd 334
3rd 336

8. Example 2
The sum of 4 consecutive numbers add up to Find the four numbers.
1st 1201
2nd 1202
3rd 1203
4th 1204

9. Example 3
You and 3 friends divide the proceeds of a garage sale equally. The garage sale earned $412. How much money did you receive?
$103 each

10. Creating Inequalities

11. Example 4
Juan has no more than $50 to spend at the mall. He wants to buy a pair of jeans and some juice. If the sales tax is 4% and the juice with tax costs $2, what is the maximum price of jeans Juan can afford?
x  $46.15

12. Example 5
Silvia is saving to buy a laptop that costs $1,100. So far she has saved $400. She makes $12 an hour babysitting. What’s the least number of hours she needs to work in order to reach her goal?
x ≥ hours

13. Worksheet Linear Equations & Inequalities
Homework
Worksheet Linear Equations & Inequalities