Grade 8 | Unit 4: Linear Equations and Linear Systems | End-of-Unit Assessment (A)

Here is a balanced hanger diagram: A circle has a mass of 3 grams and a square has a mass of 2 grams. Which is the mass of a triangle?

• 3 grams

• 7 grams

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8.EE.C

Select all the systems of equations that have exactly one solution.

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8.EE.C.8.b

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8.EE.C.8.a

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8.EE.C.7.b

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8.EE.C.7.b

8.EE.C.8

Andre and Elena are each saving money. Andre starts with $100 in his savings account and adds $5 per week. Elena starts with $10 in her savings account and adds $20 each week. After four weeks, who has more money in their savings account? Explain how you know.

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8.EE.C.7

After how many weeks will Andre and Elena have the same amount of money in their savings accounts?

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8.EE.C.7

60 people attend a game night. Everyone chooses to play chess, a two-player game, or cribbage, a four-player game. All 60 people are playing either chess or cribbage. Complete this table showing some possible combinations of the number of each type of game being played: There are 3 more games of cribbage being played than games of chess being played. How many of each game are being played? Explain or show your reasoning.

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8.EE.C.8.c