EnVision Math 8 - Topic 2 Test

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Back

Subtract 33 from both sides.

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This line shows the mistake.

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If Kelsey buys uniform pants for $17.95 each and a sweater for $24, and Jenna buys pants for $18.95 each plus a sweater for $18, how many pairs of pants must they buy to spend the same amount?

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They will each buy 6 pairs of pants.

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What is the formula for the perimeter of a rectangle?

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Perimeter = 2(length + width)

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If the perimeter of a rectangle is 36 inches, what is the length if the width is 12 inches?

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Length = 6 inches.

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What does it mean to isolate a variable in an equation?

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To isolate a variable means to get the variable alone on one side of the equation.

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Front

What is the definition of a variable in mathematics?

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A variable is a symbol used to represent an unknown value.

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What is the process of checking a solution in an equation called?

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Verification.