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PLEASE HELP ME VERY QUICKLY! IM SO CONFUSED.

PLEASE HELP ME VERY QUICKLY! IM SO CONFUSED.-example-1

1 Answer

4 votes

Answer:

∠ABC = 34°

∠DBC = 44°

Explanation:

The angle sum theorem tells you ...

(5x+4) +(5x-6) = 78

10x = 80 . . . . . . . . . . add 2 and simplify

x = 8

Then the two angles are ...

∠ABC = 5(8) -6 = 34°

∠DBC = 5(8) +4 = 44°

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