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3 years ago

Two angles are complementary. The measure of ∠ABC is x° and the measure of ∠DBC is (3x + 10)°. What is the value of x?

Mathematics

2 answers:

serg [7]3 years ago

5 0

X+3x+10=90
4x=90-10
4x=80
x=20

Licemer1 [7]3 years ago

3 0

Answer: x = 20

Step-by-step explanation:

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