expressions & equations carousel welcome to math 6
TRANSCRIPT
Expressions & Equations Carousel
Welcome to Math 6
Objectives1. Apply and extend previous
understandings of arithmetic to algebraic expressions.
2. Reason about and solve one-variable equations and inequalities.
3. Represent and analyze quantitative relationships between dependent and independent variables.
a.12.25n b.6.50 +5.75nc. 6.50n +5.75 d. 6.50n +5.75n
Hannah babysits to earn money. She charges $6.50 to babysit for the first hour. She charges $5.75 for each additional hour. Let n equal the number of hours after the first hour.
Which expression represents how much Hannah charges?
Exa
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le 1
a. f ≥ 200 b. f ≤ 200c. f > 200 d. f > 200
Suppose the weight of a stove and a freezer together weigh at least 370 pounds. The weight f -the stove, is 170 pounds. Which inequality describes these conditions for the weight of the freezer?
Exa
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le 2
a. 2w+6 c. 2w+12b. 4w+6 d. 4w+12
The length of a rectangle is 6 inches longer than the width. Which choice is a correct expression for the perimeter of the rectangle?
Exa
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le 3
a. 4x+8y c. x+8yb. 4x+2y d. 8x+8y
Which choice is equivalent to the expression 4(x+2y)?
Exa
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le 4
What is the greatest whole number that is less than:
)÷)
Exa
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le 5
1,000(3.50x) 1000
3.50 3.50
Jane wants to visit her sister. Her car travels x miles per gallon of gas. She will travel 1,000 miles to her sister’s house. Gas costs $3.50 per gallon. Which expression shows how much Jane will spend for gas?
x
1000
1000
x
x350
1
Exa
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le 6
Conclusion
“Expressions and equations” will become a bigger focus in math 7 and beyond. This is the foundation of algebra. Be sure you review this section carefully.
Assignment
Websites with great games:
http://www.math-play.com/Algebraic-Expressions-Millionaire/algebraic-expressions-millionaire.html
http://education.jlab.org/sminequality/