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Master the skill of converting verbal phrases into algebraic expressions through this concise lesson. The objective is to learn how to translate real-world situations using important keywords, choose variables for unknown values, and create algebraic representations. By the end of this lesson, you'll understand how writing phrases as expressions can help facilitate problem-solving in algebra. Discover practical examples and exercises to solidify your knowledge of algebraic expressions. Perfect for homework assistance and exam preparation.
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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
5 Minute Check Complete on the back of your homework. m = 2, n = 16 and g = 1. n + 8
5 Minute Check Complete on the back of your homework. m = 2, n = 16 and g = 1. n + 8 16 + 8
5 Minute Check Complete on the back of your homework. m = 2, n = 16 and g = 1. n + 8 16 + 8 24
5 Minute Check Complete on the back of your homework. m = 2, n = 16 and g = 2. 45g
5 Minute Check Complete on the back of your homework. m = 2, n = 16 and g = 2. 45g 45 ·
5 Minute Check Complete on the back of your homework. m = 2, n = 16 and g = 2. 45g 45 · 45 5 9
5 Minute Check Complete on the back of your homework. m = 2, n = 16 and g = 3. 2n - 6
5 Minute Check Complete on the back of your homework. m = 2, n = 16 and g = 3. 2n - 6 2 · 16 – 6
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
5 Minute Check Complete on the back of your homework. m = 2, n = 16 and g = 4. 7m + 8
5 Minute Check Complete on the back of your homework. m = 2, n = 16 and g = 4. 7m + 8 7 · 2 + 8
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
Thursday, Nov 21 Lesson 6.4 Algebra: Write Expressions
Algebra: Write Expressions Objective: To understand how to write verbal phrases as simple algebraic expressions.
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?
Algebra: Write Expressions Writing verbal phrases as algebraic expressions. Step 1 – Describe the situation using the most important words.
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.
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.
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.
Algebra: Write Expressions e.g. Eight dollars more than Ryan earned. Step 2 – Choose a variable to represent the unknown quantity. Let R = Ryan
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
Algebra: Write Expressions e.g. Ten dollars less than the original price. Step 1 – Describe the situation using the most important words.
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.
Algebra: Write Expressions e.g. Ten dollars less than the original price. Step 2 – Choose a variable to represent the unknown quantity.
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
Algebra: Write Expressions e.g. Ten dollars less than the original price. Step 3 – Convert your verbal phrase into an algebraic expression.
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?
Algebra: Write Expressions Four points fewer than the Bulls scored. Do this on your own.
Algebra: Write Expressions Four points fewer than the Bulls scored. B – 4, B = Points Bulls Scored.
Algebra: Write Expressions 12 times the number of feet Do this on your own.
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.
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.
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.
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.
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
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.
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.
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.
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
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.
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
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.
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
Algebra: Write Expressions If n represents that number of songs stored on an mp3 player, describe the meaning of: n + 7
Algebra: Write Expressions If n represents that number of songs stored on an mp3 player, describe the meaning of: n + 7 7 more songs
Algebra: Write Expressions If n represents that number of songs stored on an mp3 player, describe the meaning of: n - 2
Algebra: Write Expressions If n represents that number of songs stored on an mp3 player, describe the meaning of: n – 2 2 less songs
Algebra: Write Expressions If n represents that number of songs stored on an mp3 player, describe the meaning of: 4n