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
soldier1979 [14.2K]
3 years ago
7

HELP IS MUCH NEEDED :)

Mathematics
2 answers:
ElenaW [278]3 years ago
5 0
∠ADC = 112°
∠ADC =6x + 7 + 12x - 3

Equate both:
6x + 7 + 12x - 3 = 112

Solve for x :
6x + 7 + 12x - 3 = 112

Combine like terms:
18x + 4= 112

Take away 4 from both sides:
18x = 108

Divide both sides by 18:
x = 6

Find ∠ADB:
6x + 7 = 6(6) + 7 = 43


Answer: ∠ADB = 43°

Elena L [17]3 years ago
4 0
If m∠ABC = 112°, then m∠ADB + m∠BDC must equal 112°.

Make m∠ADB + m∠BDC = 112.

6x + 7 + 12x - 3 = 112
18x + 4 = 112
18x = 108
x = 6

Now plug x into 6x + 7 to find m∠ADB.

6(6) + 7 = 43

m∠ADB = 43°
You might be interested in
A CD has a 5% chance of being a smash hit and profiting $5.2 million, a 50% chance of being a modest success and profiting $0.9
Zinaida [17]
The probability of profiting $5.2 million is 5% = 0.05

The probability of profiting $0.9 million is 50% = 0.5

The probability of breaking even, meaning no profit gain, is 45% = 0.45

Expected profit values of the CD is given by
(0.05×5.2) + (0.5×0.9) + (0.45×0) = 0.26+0.45+0 = 0.71 million

3 0
3 years ago
Need help win number 34. Math.
Elena-2011 [213]
I looked it up and this is what it said

Least to greatest: 1.5 qt; 7 c; 64 fl oz
7 0
3 years ago
The price of a pair of socks decreases from 15 dollars to 12 dollars what is the percent decrease
murzikaleks [220]

Answer:

20%

Step-by-step explanation:

12/15 = .8

subtract from 1

gives you .2

convert to a percentage

.2 = 20%

6 0
3 years ago
$316 for 4 dvd players
Montano1993 [528]
79 dollors for each dVd
5 0
3 years ago
Read 2 more answers
. Which of the following equations is(are)
BARSIC [14]

Answer:

C . 5x-3y=-15

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • This is pt 2 to my last question pls help 25 points
    7·1 answer
  • Pick a two-digit number greater than 25. Rewrite your two-digit number as a difference of two numbers. Show how to use the ident
    8·1 answer
  • Which shape is a Parallelogram?
    6·1 answer
  • What is the distance between -25 and -12 on a number line
    12·2 answers
  • Is the proportion A, B, D, or D?
    7·1 answer
  • The sale price of the book is 8.96 with the sell price of 30%. What's the regular price?
    6·1 answer
  • What is the common ratio of the sequence?<br> -2, 6, -18, 54,...<br> -3<br> -2<br> 3<br> 8
    12·1 answer
  • Determine the length of c in triangle shown Need help today pleasee
    7·1 answer
  • Solve -4/5x =12<br><br> please help
    5·2 answers
  • Which statement describes the function below<br> f(x)=x^3-x^2-9x+9
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!