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
marin [14]
2 years ago
12

19. Find the measure of angle ABC.

Mathematics
1 answer:
aliya0001 [1]2 years ago
8 0

Answer:

72

Step-by-step explanation:

6x+6x+8x=180 (∠ sum of Δ)

20x=180

x=9

∠ABC=8(9)

         =72

You might be interested in
David was in need for some money so he decided to clean out the water fountain at the mall he found 20 nickels and quarters. The
Shkiper50 [21]

Answer:

David find <u>8</u> quarters.

Step-by-step explanation:

Given:

David was in need for some money so he decided to clean out the water fountain at the mall he found 20 nickels and quarters.

The collection of nickels and quarters totaled to 2.6.

Now, to find the quarters David find.

Let the number of nickels be x

And the number of quarters be y

Thus, the number of nickels and quarters he found:

x+y=20.

⇒ x=20-y.........( 1 )

The totaled of nickels and quarters:

0.05x+0.25y=2.6

(As 1 nickel=$0.05 and 1 quarter=$0.25)

Now, putting the equation ( 1 ) in the place of x we get:

0.05(20-y)+0.25y=2.6

⇒ 1-0.05y+0.25y=2.6

⇒ 1+0.20y=2.6

<em>Subtracting both sides by 1 we get:</em>

⇒ 0.20y=1.6

<em>Dividing both sides by 0.20 we get:</em>

⇒ y = 8.

So, the quarters = 8.

Therefore, David find 8 quarters.

3 0
3 years ago
Factor by grouping.<br> 7ax-7bx-2ay+2by
miv72 [106K]

Answer:

(7x-2y)(a-b) Here is the answer!

Step-by-step explanation:

Your welcome btw! :D

4 0
3 years ago
Expand and simplify (x + 3)(x + 5)<br><br><br><br>​
Ann [662]
Answer (apply the FOIL method)

X^2+8x+15
6 0
2 years ago
Read 2 more answers
8x-19 = -12x+61 What is x?
olasank [31]

Answer:

x is 4

Step-by-step explanation:

Step one: Add 12x to both sides-

8x-19+12x=-12x+61+12x

20x-19=61

Step 2: add 19 to both sides

20x -19+19=61+19

20x=80

Step 3: divide both sides by 20

20x/20=80/20

x=4

3 0
3 years ago
What is made up of quantities and the operations performed on them?
Rainbow [258]
Your answer is a equation!
6 0
3 years ago
Other questions:
  • Write the equation of a line that is perpendicular to 2x-7y=13 and which passes through the point ( -3,8).
    12·1 answer
  • What are the coordinates of the x-intercept of the equation -5y=4-2x?
    9·1 answer
  • Which number produced an irrational number by 1/4
    8·1 answer
  • Ashley is picking apples. She fills two baskets with apples and puts 5 apples in her pockets. The larger basket holds 35 more ap
    5·1 answer
  • Solve 2x2 + 12x − 14 = 0 by completing the square.
    9·1 answer
  • The volume of a basketball is 448.92 cubic inches, and the volume of a baseball is 12.77 cubic inches. How many baseballs would
    11·2 answers
  • The length of the rectangle is three times its width.The perimeter of the rectangle is at most 112 cm .
    11·1 answer
  • Segment Side A E is 7 inches and Side A H is 7 StartRoot 3 EndRoot inches. What is the length of Side E H? Round to the nearest
    8·2 answers
  • Which table represents a function ?
    7·1 answer
  • Records show that Oliver is typically 10–30 minutes late for his shift at work. The distribution for the minutes he is late form
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!