Can someone please explain to me how to solve this problem? I have the answer already all I need is to know how to solve the pro

Question

3 years ago

14

blem.

2 answers:

omeli [17] · Answer 1 · 2022-12-07T17:09:23+03:00

omeli [17]3 years ago

5 0

Answer:

Step-by-step explanation:

you have two supplementary angles,

both added up=180

7y+5y=12y

12y=180y=15

angle DBC=7y=15*7=105

goldenfox [79] · Answer 2 · 2022-12-07T18:54:56+03:00

3 0

Answer:

Step-by-step explanation:

You know that angle DBA = 180 degrees.

Therefore you can write an equation:

7y+5y=180

12y=180

y=15

Now, you know that y = 15, you can multiply 7 * 15 = 105 degrees