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Marina86 [1]
3 years ago
13

Which equation can be used to solve for x in the following diagram?

Mathematics
2 answers:
charle [14.2K]3 years ago
5 0

Answer:

D. 4x + 5x = 180

Step-by-step explanation:

The two angles form a straight line and a straight line equals 180°. So, the sum of the two angles has to equal 180°.

4x + 5x = 180

9x = 180

x = 20°

Hope that helps.

Kamila [148]3 years ago
3 0

Answer:

D. 4x+5x=180

Step-by-step explanation:

   

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