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Big Ideas Math Integrated I, 2016 View details

2. Measuring and Constructing Segments

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Exercise 9 Page 391

Use the Segment Addition Postulate to form an equation.

449 mi

Practice makes perfect

We need to find the distance between Albuquerque A and Provo P. The distance between Carlsbad C and Provo (CP) is given. The distance from Carlsbad to Albuquerque (CA) is also given. Since the three points are on a straight line, we can use the Segment Addition Postulate to form an equation. CP=CA + AP We can now use the known lengths to solve the equation for AP.

CP=CA+AP

SubstituteII

CP= 680, CA= 231

680= 231+AP

SubEqn

LHS-231=RHS-231

449=AP

RearrangeEqn

Rearrange equation

AP=449

The distance from Albuquerque to Provo is approximately 449 mi.