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Mathematics 23 Online
OpenStudy (anonymous):

The image below shows two parallel lines cut by a transversal. Using the figure below, solve for x.

OpenStudy (anonymous):

OpenStudy (campbell_st):

the 2 given angles are supplementary... there is an angle vertically opposite 4x + 20 that is also 4x + 20... (vertically opposite angles are equal) then you have 2 co-interior angles... these are angles that are supplementary or add to 180... so you have 4x + 20 +5x - 50 = 180 now just solve for x

OpenStudy (anonymous):

so the answer is 23.3?

OpenStudy (anonymous):

@campbell_st

OpenStudy (campbell_st):

well whatever 210/9 is 70/3 so you answer seems sensible

OpenStudy (anonymous):

ok thanks

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