1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ryzh [129]
3 years ago
12

How do i know when to add or subtract in an angle equation?

Mathematics
1 answer:
madam [21]3 years ago
7 0

Answer:

17

Step-by-step explanation:

< ABD = <ABC + < CBD

Substitute in what we are given

87 = 9x-1 +   6x+58

Combine like terms

87 = 15x +57

Subtract 57 from each side

87-57 =15x +57-57

30 = 15x

Divide by 15

30/15 =15x/15

2=x

We want to find <ABC

<ABC = 9x-1

         = 9*2-1

         =18-1

      =17

You might be interested in
Eddie worked 26 hours at the bagel shop at an hourly rate of $9.15. How much Social Security tax will be deducted from his paych
Vlad1618 [11]
Your answer is going to be B. $14.75, hope this helps!!
5 0
4 years ago
What is 0.774193 rounded to the nearest tenth
Damm [24]
Rounded to the nearest tenth would be 0.8

3 0
4 years ago
Read 2 more answers
Substitution method<br><br> 3x - 4y = 18<br> 2x + y = 1
insens350 [35]
There are 3 pictures of the steps.

x = 2

y = -3

7 0
3 years ago
What is the slope of the line shown?
const2013 [10]

Answer:

-2

Step-by-step explanation:

down 4 over 2 meaning it's negative; simplify

4 0
3 years ago
Does anyone know the answer to this? i’ll mark brainliest
Ilia_Sergeevich [38]

Answer:

It is greater

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • 6.79x10 to the second power written in standard form
    7·1 answer
  • Helppp!!! Will fan and Medal!!!
    13·1 answer
  • Solve for x Solve for x. 4x = 3/8<br> ASAP 30 POINTS
    12·1 answer
  • Help please i really need it
    11·1 answer
  • Geometry question. please help ​
    14·1 answer
  • Read this carefully please!
    12·2 answers
  • Which choices are equivalent to the expression below? Check all that apply.
    7·1 answer
  • Which expression is equivalent to<br> 3-7<br> 3-1?
    9·1 answer
  • Solve the exponential equation<br> help, it's for homework
    13·1 answer
  • One $1,000 loan charges 5% interest at the end of each year, while a second loan charges 8% interest at the end of each year. Co
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!