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love history [14]
3 years ago
7

HELPPPPPPPFPPFPFPFFPPFPF

Mathematics
1 answer:
LiRa [457]3 years ago
5 0

Answer:First doman

Step-by-step explanation:

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A bag contains 36 red balloons, 40 blue balloons, and 24 purple balloons. Find the probability of NOT choosing a purple balloon.
sergiy2304 [10]
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Sorry, it's late, and I'm a bad explainer.

The error is adding (2x-12) with x and 30. This is wrong because you are adding the angles inside the triangle and you are assuming that (2x - 12) is the unlabeled angle INSIDE the triangle, when it is the exterior angle/outside of the triangle.

A straight line is also 180°.

(2x - 12) + ? = 180

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