1. Warm Up
Represent each statement as a mathematical expression using variables: (copy each “phrase” into your notebook)
Five more than a number
Three times a number is decreased by two
A number increased by two is less than twice the same number decreased by four
Five inches taller than Mark
An initial fifty dollars plus two dollars per month
Fifteen dollars for the first 100, then 20 cents per copy after that.

2. Five more than a number
Let n be a number
n + 5

3. Three times a number is decreased by two
Let n be a number
3n - 2

4. n + 2 < 2n - 4 Let n be a number
A number increased by two is less than twice the same number decreased by four
Let n be a number
n + 2 < 2n - 4

5. Five inches taller than Mark
Let h be Mark’s height
h + 5

6. An initial fifty dollars plus two dollars per month
Let m be number of months
50 + 2m

7. 15 + .20c Let c be number of copies
Fifteen dollars, total, for the first 100 copies, then 20 cents per copy after that
Let c be number of copies c

8. Objective: I can solve word problems!
Grab: Algebra 2 Quiz Review

9. Word Problem Solving Strategies
Read through the entire problem.
Highlight the important information and key words that you need to solve the problem.
Identify and define your variables.
Write the equation or inequality.
Solve.
Write your answer in a complete sentence.
Check or justify your answer (optional).

10. Age Problem
Write an equation and solve: Suzie is 3 years older than twice Crystal’s age. If the sum of their ages is 6, how old are Suzie and Crystal?

11. Travel Problem
Write an equation and solve: Two buses leave Houston at the same time and travel in opposite directions. One bus averages 55mi/h and the other bus averages 45mi/h. When will they be 400 miles apart?

12. Geometry Problem
Write an equation and solve: The length of a rectangle is 3 cm greater than its width. The perimeter is 24 cm. What are the dimensions of the rectangle?

13. Inequality Key Words at least - means greater than or equal to
At most –means less than or equal to
no more than - means less than or equal to
more than - means greater than
less than - means less than
Between -means compound inequality with and

21. Homework:
Page 30: 27, 45, 53, 61
Page 38: 11, 13, 25, 27, 51, 55