If < A and < B are complementary, and < A = 3x + 4 degrees, while < B = 6x - 4 degrees, find x. Select one: a. 10 b. 4 c. 9 d. 21

Lieuwe asked May 24, 2022

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If < A and < B are complementary, and < A = 3x + 4 degrees, while < B = 6x - 4 degrees, find x.

Select one:
a. 10
b. 4
c. 9
d. 21

Lieuwe asked May 24, 2022

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16 votes

Answer:

Explanation:

complementary angles sum to 90° , so

3x + 4 + 6x - 4 = 90

9x = 90 ( divide both sides by 9 )

x = 10

Erwin Wessels answered May 28, 2022

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