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McGraw Hill Integrated II, 2012

MH

McGraw Hill Integrated II, 2012 View details

4. Parallel Lines and Proportional Parts

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Exercise 70 Page 581

You can solve for the variable by using the Properties of Equality.

3.6

Practice makes perfect

We will use the Properties of Equality to solve the given proportion. Let's start by applying the Multiplication Property of Equality.

x-2/2=4/5

LHS * 5=RHS* 5

5* x-2/2=4

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a*b/c= a* b/c

5(x-2)/2=4

LHS * 2=RHS* 2

5(x-2)=8

Distribute 5

5x-10=8

LHS+10=RHS+10

5x=18

.LHS /5.=.RHS /5.

x=18/5

Calculate quotient

x=3.6

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Exercises p.577-581