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5 Minute Check Complete on the back of your homework. m = 2, n = 16 and g = 1. n + 8 2. 45g 3. 2n - 6 4. 7m + 8.

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Presentation on theme: "5 Minute Check Complete on the back of your homework. m = 2, n = 16 and g = 1. n + 8 2. 45g 3. 2n - 6 4. 7m + 8."— Presentation transcript:

1 5 Minute Check Complete on the back of your homework. m = 2, n = 16 and g = 1. n + 8 2. 45g 3. 2n - 6 4. 7m + 8

2 5 Minute Check Complete on the back of your homework. m = 2, n = 16 and g = 1. n + 8

3 5 Minute Check Complete on the back of your homework. m = 2, n = 16 and g = 1. n + 8 16 + 8

4 5 Minute Check Complete on the back of your homework. m = 2, n = 16 and g = 1. n + 8 16 + 8 24

5 5 Minute Check Complete on the back of your homework. m = 2, n = 16 and g = 2. 45g

6 5 Minute Check Complete on the back of your homework. m = 2, n = 16 and g = 2. 45g 45 ·

7 5 Minute Check Complete on the back of your homework. m = 2, n = 16 and g = 2. 45g 45 · 45 5 9

8 5 Minute Check Complete on the back of your homework. m = 2, n = 16 and g = 3. 2n - 6

9 5 Minute Check Complete on the back of your homework. m = 2, n = 16 and g = 3. 2n - 6 2 · 16 – 6

10 5 Minute Check Complete on the back of your homework. m = 2, n = 16 and g = 3. 2n - 6 2 · 16 – 6 32 – 6 26

11 5 Minute Check Complete on the back of your homework. m = 2, n = 16 and g = 4. 7m + 8

12 5 Minute Check Complete on the back of your homework. m = 2, n = 16 and g = 4. 7m + 8 7 · 2 + 8

13 5 Minute Check Complete on the back of your homework. m = 2, n = 16 and g = 4. 7m + 8 7 · 2 + 8 14 + 8 22

14 Flashcards

15 Thursday, Nov 21 Lesson 6.4 Algebra: Write Expressions

16 Objective: To understand how to write verbal phrases as simple algebraic expressions.

17 Algebra: Write Expressions At the end of this lesson you should be able to answer the following question. How can writing phrases as algebraic expressions help you solve problems?

18 Algebra: Write Expressions Writing verbal phrases as algebraic expressions. Step 1 – Describe the situation using the most important words.

19 Algebra: Write Expressions Writing verbal phrases as algebraic expressions. Step 1 – Describe the situation using the most important words. Step 2 – Choose a variable to represent the unknown quantity.

20 Algebra: Write Expressions Writing verbal phrases as algebraic expressions. Step 1 – Describe the situation using the most important words. Step 2 – Choose a variable to represent the unknown quantity. Step 3 – Convert your verbal phrase into an algebraic expression.

21 Algebra: Write Expressions e.g. Eight dollars more than Ryan earned. Step 1 – Describe the situation using the most important words. This is already condensed to the most important words.

22 Algebra: Write Expressions e.g. Eight dollars more than Ryan earned. Step 2 – Choose a variable to represent the unknown quantity. Let R = Ryan

23 Algebra: Write Expressions e.g. Eight dollars more than Ryan earned. Step 3 – Convert your verbal phrase into an algebraic expression. R + 8, R = amount Ryan earned

24 Algebra: Write Expressions e.g. Ten dollars less than the original price. Step 1 – Describe the situation using the most important words.

25 Algebra: Write Expressions e.g. Ten dollars less than the original price. Step 1 – Describe the situation using the most important words. Ten dollars less than the original price.

26 Algebra: Write Expressions e.g. Ten dollars less than the original price. Step 2 – Choose a variable to represent the unknown quantity.

27 Algebra: Write Expressions e.g. Ten dollars less than the original price. Step 2 – Choose a variable to represent the unknown quantity. Original price = p

28 Algebra: Write Expressions e.g. Ten dollars less than the original price. Step 3 – Convert your verbal phrase into an algebraic expression.

29 Algebra: Write Expressions e.g. Ten dollars less than the original price. Step 3 – Convert your verbal phrase into an algebraic expression. p - $10, p = original price Why would it not be $10 - p?

30 Algebra: Write Expressions Four points fewer than the Bulls scored. Do this on your own.

31 Algebra: Write Expressions Four points fewer than the Bulls scored. B – 4, B = Points Bulls Scored.

32 Algebra: Write Expressions 12 times the number of feet Do this on your own.

33 Algebra: Write Expressions 12 times the number of feet 12f, f = feet Generally, when a number is multiplied by a variable, the number is written first.

34 Algebra: Write Expressions Write the phrase 5 less than 3 times the number of points as an algebraic expression. Step 1 – Describe the situation using the most important words.

35 Algebra: Write Expressions Write the phrase 5 less than 3 times the number of points as an algebraic expression. Step 1 – Describe the situation using the most important words. 5 less than 3 times the number of points.

36 Algebra: Write Expressions Write the phrase 5 less than 3 times the number of points as an algebraic expression. Step 2 – Choose a variable to represent the unknown quantity.

37 Algebra: Write Expressions Write the phrase 5 less than 3 times the number of points as an algebraic expression. Step 2 – Choose a variable to represent the unknown quantity. Let p = number of points

38 Algebra: Write Expressions Write the phrase 5 less than 3 times the number of points as an algebraic expression. Step 3 – Convert your verbal phrase into an algebraic expression.

39 Algebra: Write Expressions Write the phrase 5 less than 3 times the number of points as an algebraic expression. Step 3 – Convert your verbal phrase into an algebraic expression. 3p – 5, p = number of points Generally, the term with a number and variable comes first in an expression.

40 Algebra: Write Expressions Write the phrase $3 more than four times the cost of a pretzel as an algebraic expression. Do this on your own.

41 Algebra: Write Expressions Write the phrase $3 more than four times the cost of a pretzel as an algebraic expression. 4p + $3, p = cost of pretzel

42 Algebra: Write Expressions Shoko bought a box of popcorn for $3.50 and three medium soft drinks. Define a variable and write an expression to represent the total amount he spent. Then find the total amount if one drink costs $1.50. Do this on your own.

43 Algebra: Write Expressions Shoko bought a box of popcorn for $3.50 and three medium soft drinks. Define a variable and write an expression to represent the total amount he spent. Then find the total amount if one drink costs $1.50. 3d + 3.5, d = drink 3· 1.5 + 3.5 4.5 + 3.5 8

44 Algebra: Write Expressions Terri bought a magazine for $5, and 2 bottles of nail polish. Write an expression to represent the total amount she spent. Then find the total amount if each bottle of nail polish costs $3. Do this on your own.

45 Algebra: Write Expressions Terri bought a magazine for $5, and 2 bottles of nail polish. Write an expression to represent the total amount she spent. Then find the total amount if each bottle of nail polish costs $3. 2d + 5, d = cost of bottle of nail polish 2·3 + 5 6 + 5 11

46 Algebra: Write Expressions If n represents that number of songs stored on an mp3 player, describe the meaning of: n + 7

47 Algebra: Write Expressions If n represents that number of songs stored on an mp3 player, describe the meaning of: n + 7 7 more songs

48 Algebra: Write Expressions If n represents that number of songs stored on an mp3 player, describe the meaning of: n - 2

49 Algebra: Write Expressions If n represents that number of songs stored on an mp3 player, describe the meaning of: n – 2 2 less songs

50 Algebra: Write Expressions If n represents that number of songs stored on an mp3 player, describe the meaning of: 4n

51 Algebra: Write Expressions If n represents that number of songs stored on an mp3 player, describe the meaning of: 4n 4 times the songs

52 Algebra: Write Expressions If n represents that number of songs stored on an mp3 player, describe the meaning of: n ÷ 2

53 Algebra: Write Expressions If n represents that number of songs stored on an mp3 player, describe the meaning of: n ÷ 2 Half the songs

54 Algebra: Write Expressions How can writing phrases as algebraic expressions help you solve problems?

55 Algebra: Write Expressions Agenda Notes Homework – Homework Practice 6-4 Due Friday, Nov 22 Mid-Chapter 6 Quiz – Friday, Nov 22


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