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castortr0y [4]
3 years ago
5

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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<h3>What is seating arrangement?</h3>

A seating arrangement is an arrangement shows that how the peoples are arranged so that the complete utilization is done.

The given data in the problem is;

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If the same number of the students are to be arranged for the given row, the following calculation is done;

The numbers of the student in each row is found as;

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Hence, in each row, the 15 no of the student is arranged.

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kati45 [8]

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