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Laabri

Open Up - Grade 8 - Mathematics - Unit 4 - Lesson 2

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Last updated almost 3 years ago
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"Source: Open Up Resouces (Download for free at openupresources.org.)"

Asemmisa {{asɛmmisaAhyɛnsode}}
1.

Which of the changes would keep the hanger in balance? Select all that apply.

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2.

Here is a balanced hanger diagram.

Each triangle weighs 2.5 pounds, each circle weighs 3 pounds, and x represents the weight of each square. Select all equations that represent the hanger.

Asemmisa {{asɛmmisaAhyɛnsode}}
3.

Here is a balanced hanger diagram.

Each triangle weighs 2.5 pounds, each circle weighs 3 pounds, and x represents the weight of each square. Select all equations that represent the hanger.

Asemmisa {{asɛmmisaAhyɛnsode}}
4.

What is the weight of a square if a triangle weighs 4 grams?

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5.

What is the weight of a square if a triangle weighs 4 grams?

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6.

Andre came up with the following puzzle. “I am three years younger than my brother, and I am 2 years older than my sister. My mom's age is one less than three times my brother's age. When you add all our ages, you get 87. What are our ages?"

Try to solve the puzzle.

Asemmisa {{asɛmmisaAhyɛnsode}}
7.

Andre came up with the following puzzle. “I am three years younger than my brother, and I am 2 years older than my sister. My mom's age is one less than three times my brother's age. When you add all our ages, you get 87.

Jada writes this equation for the sum of the ages: (x) + (x +3) + (x -2) + 3(x +3) -1 = 87. Explain the meaning of the variable and each term of the equation.

Asemmisa {{asɛmmisaAhyɛnsode}}
8.

Andre came up with the following puzzle. “I am three years younger than my brother, and I am 2 years older than my sister. My mom's age is one less than three times my brother's age. When you add all our ages, you get 87.

Write the equation with fewer terms.

Asemmisa {{asɛmmisaAhyɛnsode}}
9.

These two lines are parallel. Write an equation for each.