Two angles are complementary. the first angle is 2x degrees. the second angle is (x+30) degrees. determine the larger angle

larger angle = 50°

complementary angles sum to 90° , hence

2x + x + 30 = 90

3x + 30 = 90 ( subtract 30 from both sides )

3x = 60 ( divide both sides by 3 )

x = 20

thus 2x = 2 × 20 = 40° and x + 30 = 20 + 30 = 50°

the larger angle is x + 30 = 50°

the answer to your question is c.)   volcanoes built the mountains and earthquakes tore them down.

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