2.5
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Answer:
the answer 0.4
Step-by-step explanation;
If the original angle is x degrees then its supplement is 180 - x degrees.
we have the equation:-
180 - x = 3x + 20
160 = 4x
x = 40
The original angle is 40 degrees and its supplement is 140 degrees
option D recording the reaction time of participants in a study who were asked to press a button age as soon as they see a certain picture on a screen ASAP please
