Lesson Menu Main Idea and New Vocabulary NGSSS Key Concept:Division Property of Equality Example...
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Transcript of Lesson Menu Main Idea and New Vocabulary NGSSS Key Concept:Division Property of Equality Example...
![Page 1: Lesson Menu Main Idea and New Vocabulary NGSSS Key Concept:Division Property of Equality Example 1:Solve Multiplication Equations Example 2:Solve Multiplication.](https://reader036.fdocuments.in/reader036/viewer/2022062421/56649dc85503460f94abde50/html5/thumbnails/1.jpg)
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Main Idea and New Vocabulary
NGSSS
Key Concept:Division Property of Equality
Example 1:Solve Multiplication Equations
Example 2:Solve Multiplication Equations
Example 3:Real-World Example: Solve aMultiplication Equation
Key Concept:Multiplication Property of Equality
Example 4: Solve Division Equations
Example 5: Real-World Example: Solve a DivisionEquation
Five-Minute Check
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• Solve one-step multiplication and division equations.
• coefficient
• formula
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MA.7.A.3.3 Formulate and use different strategies to solve one-step and two-step linear equations, including equations with rational coefficients.
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Solve Multiplication Equations
Solve 39 = 3y. Check your solution.
Check
39 = 3y Write the equation.
Division Property of Equality
13 = y Simplify.
39 = 3y Write the original equation.?
39 = 3(13) Replace y with 13.
39 = 39 The sentence is true.
Answer: The solution is 13.
![Page 8: Lesson Menu Main Idea and New Vocabulary NGSSS Key Concept:Division Property of Equality Example 1:Solve Multiplication Equations Example 2:Solve Multiplication.](https://reader036.fdocuments.in/reader036/viewer/2022062421/56649dc85503460f94abde50/html5/thumbnails/8.jpg)
Solve −4z = 60. Check your solution.
Solve Multiplication Equations
Answer: The solution is –15.
–4z = 60 Write the equation.
z = –15 60 ÷ (–4) = –15
–4z = 60 Write the original equation.?
–4(–15) = 60 Replace z with –15.
60 = 60 The sentence is true.
Division Property of Equality
Check
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MAIL Serena mailed 138 letters during the last 6 days. On average, how many letters did she mail each day?
Solve a Multiplication Equation
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Answer: Serena mailed 23 letters each day.
138 = 6ℓ Write the equation.
23 = ℓ 138 ÷ 6 = 23
Division Property of Equality
Solve a Multiplication Equation
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PIZZA The student council has $175 for a pizza party. Pizzas cost $7 each. How many pizzas can they buy?
A. 22 pizzas
B. 24 pizzas
C. 25 pizzas
D. 32 pizzas
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Solve Division Equations
Solve
m = –20 –10 ● (2) = –20
Write the equation.
Multiplication Property ofEquality
Answer: The solution is –20.
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DISTANCE The distance d that Lance travels on
his bike at a rate of 20 miles per hour for 4 hours
is given by the equation How far did he
ride?
Solve a Division Equation
d = 80 20 ● 4 = 80
Write the equation.
Multiplication Property ofEquality
Answer: Lance rode 80 miles.
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DISTANCE Kevin is driving an average rate of
60 miles per hour. He has been driving for 2 hours.
The distance he has traveled is given by the
equation How far has Kevin driven?
A. 120 miles
B. 62 miles
C. 60 miles
D. 30 miles
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Gina wants to buy party favors that cost $4 each. She has a total of $36 to spend. How many party favors can she buy?
A. 4x = 36; 8 party favors
B. 4x = 36; 9 party favors
C. 36 = x – 4; 40 party favors
D. 36 = x + 4; 32 party favors
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A package of 8 juice bottles costs $12. Find the price per bottle.
A. $0.67
B. $1.50
C. $4.00
D. $9.60
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