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Pearson Algebra 1 Common Core, 2011

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Pearson Algebra 1 Common Core, 2011 View details

8. Proportions and Similar Figures

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Exercise 36 Page 136

Use the Properties of Equality to solve the proportion.

4.5

Practice makes perfect

To solve the proportion we will use the Properties of Equality.

3/a=2/3

LHS * a=RHS* a

3=2/3 * a

LHS * 3=RHS* 3

3*3=a*2

Multiply

9=2a

.LHS /2.=.RHS /2.

9/2=2a/2

Calculate quotient

4.5=a

Rearrange equation

a=4.5

Subchapter links

Lesson Check p.133

Standardized Test Prep p.136

Mixed Review p.136