Proportions and Equations

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Tags

CCSS.7.RP.A.2A

Front

How do you solve a proportion?

Back

To solve a proportion, you can cross multiply the terms.

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CCSS.7.RP.A.2C

Front

What is the cross multiplication method?

Back

Cross multiplication involves multiplying the numerator of one ratio by the denominator of the other ratio.

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CCSS.3.NF.A.3D

Front

Back

4

Tags

CCSS.7.RP.A.2C

Front

What does it mean if two ratios are in proportion?

Back

It means that the two ratios represent the same relationship or value.

Tags

CCSS.6.RP.A.3A

Front

Back

26

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CCSS.7.EE.B.4A

Front

What is the solution to the equation 3x + 15 = 3(x + 5)?

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All Real Numbers

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CCSS.8.EE.C.7A

Front

What is the first step in solving the equation -(n - 8) = -2?

Back

Add 8 to both sides to isolate n.

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CCSS.7.EE.B.4A

Front

Solve: -(n - 8) = -2

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10

Tags

CCSS.7.EE.B.4A

Front

What is the definition of a variable in an equation?

Back

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

Tags

CCSS.6.EE.A.2B