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How do you write an expression to represent this situation?

How do you write an expression to represent this situation?. Every weekend Jake earns $4 for cleaning his room, and $5 for washing the car. How much money will he earn over 3 weekends?. In this lesson you will learn how to represent a real life situation by writing a mathematical expression.

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How do you write an expression to represent this situation?

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  1. How do you write an expression to represent this situation? Every weekend Jake earns $4 for cleaning his room, and $5 for washing the car. How much money will he earn over 3 weekends?

  2. In this lesson you will learn how to represent a real life situation by writing a mathematical expression.

  3. Situation: I have 3 cats and 2 dogs. Mathematical expression: 3 + 2 I have 3 cats and 2 dogs. How many pets do I have? Mathematical equations: 3 + 2 = p 3 + 2 = 5

  4. How are they different? expressions equations How are expressions and equations alike? 2 + 43 = 50 - 5 18 + 14 _ 2 = 25 =c (16 - 4) _ 2 + 3 x (3 + 7)

  5. Every weekend Jake earns $4 for cleaning his room, and $5 for washing the car. How much money will he earn over 3 weekends? $4 + $5 + ($4 + $5) ( ) + ($4 + $5) 1st weekend 2nd weekend 3rd weekend

  6. ($4 + $5) + ($4 + $5) +($4 + $5) $9 + $9 + $9 = $27 $4 + $5 + $4 + $5 +$4 + $5

  7. $4 + $5 + $4 + $5 +$4 + $5 (3 x $4) (3 x $5) + $12 + $15 = $27

  8. ($4 + $5) earned in one weekend ($4 + $5) 3 x $9 = $27 amount earned in 3 weekends 3 x

  9. Every weekend Jake earns $4 for cleaning his room, and $5 for washing the car. How much money will he earn over 3 weekends? ($4 + $5) + ($4 + $5) +($4 + $5) $4 + $5 + $4 + $5 +$4 + $5 (3 x $4) + (3 x $5) These are called equivalent expressions. 3 x ($4 + $5)

  10. Frozen Delight Ice Cream Shop charges $2.89 for one scoop of ice cream, and 90 cents for each additional scoop. Lee orders 4 scoops. How much does Lee’s ice cream cost?

  11. The question: The facts: How much does Lee’s ice cream cost? $.90 4 $2.89 for one scoop 3 $.90 $2.89 + $.90 + $.90 + $.90 2 $.90 $2.89 + $2.70 = $5.59 1 $2.89 90 cents for each additional scoop 4 + 3 x $.90 $2.89 ( ) 3 $2.89 + ($2.70) = $5.59 2 Lee orders 4 scoops. 1 1

  12. Frozen Delight Ice Cream Shop charges $2.89 for one scoop of ice cream, and 90 cents for each additional scoop. Lee orders 4 scoops. How much does Lee’s ice cream cost? $2.89 + $.90 + $.90 + $.90 These are equivalent expressions. $2.89 + 3 x $.90 $2.89 + (3 x $.90)

  13. In this lesson you have learned how to represent a real life situation by writing a mathematical expression.

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