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A. If 3x + 10º and 4x - 5° are the angle of a linear pair find their measurement.

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User LaTeXFan
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1 Answer

26 votes
26 votes

Answer:

85° and 95°

Explanation:

A linear pair of angles sum to 180° , then

3x + 10 + 4x - 5 = 180

7x + 5 = 180 ( subtract 5 from both sides )

7x = 175 ( divide both sides by 7 )

x = 25

Then

3x + 10 = 3(25) + 10 = 75 + 10 = 85°

4x - 5 = 4(25) - 5 = 100 - 5 = 95°

User Syed Nasir Abbas
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