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
Masteriza [31]
3 years ago
9

The angles below are supplementary. What is the value of x?

Mathematics
2 answers:
wlad13 [49]3 years ago
5 0
A line is 180 degrees
Subtract that 80 degrees to only single out the other half (100)
Subtract 40 so that you can single it out to just 3x (60)
Then divide your answer from the previous by three to cancel you coefficient and get your final x (60/3)
X will be equal to 20

Hope this helps! :)
Citrus2011 [14]3 years ago
4 0

Answer:

x= 20

Step-by-step explanation:

The two angles form a straight line so they add to 180 degrees

The first angle is 3x+40   and the second angle is 80.  The add together to form a straight line.  The straight line is 180 degrees.

3x+40  + 80 = 180

Combine like terms

3x+120 = 180

Subtract 120 from each side

3x+120-120=180-120

3x = 60

Divide each side by 3

3x/3 = 60/3

x = 20

You might be interested in
What is the value of the expression?
Naddik [55]
Why did u spread that so much

1/4-3/7*7/8 = 1/4 - 3/8  = 2/8 - 3/8 = -1/8
7 0
3 years ago
The midpoint of XZ is Y. Which of the following is true
sveta [45]
It’s should be D
Because if Y is the midpoint of XZ, it means XY=ZY,
or XY= half of XZ, or ZY= half of XZ.

It can also equal to 2XY=XZ, or 2ZY=XZ.

Y divides XZ into two equal parts.
4 0
3 years ago
Solve for x and y<br><br> 2x+7=3y-1
zlopas [31]
To solve for x and y, isolate each variable and simplify your equation:

Solve for x:
2x+7=3y-1 (Subtract 7 on each side)
2x=3y-8 (Divide by 2 on each side)
x=\frac{3y}{2} -4

Solve for y:
2x+7=3y-1
2x+8=3y (Add 1 on each side)
\frac{2x}{3} + \frac{8}{3}=y (Divide by 3)
y=\frac{2x}{3} + \frac{8}{3}

~I hope this helps!~
7 0
3 years ago
What is the value of the expression (-7)(3)-(5)-3)?
balandron [24]

Answer:

Step-by-step explanation: -81

3 0
3 years ago
Read 2 more answers
Last one can anyone help me plz​
meriva

Answer:

  • (f - g)(x) = -x² + 2x +1

Step-by-step explanation:

Given

  • f(x) = 2x
  • g(x) = x² - 1
  • (f - g)(x) = ?

Solution

  • (f - g)(x) = 2x - (x² - 1) = 2x - x² + 1 = -x² + 2x +1
  • (f - g)(x) = -x² + 2x +1
5 0
3 years ago
Other questions:
  • Please help with #10 and #11
    14·2 answers
  • What is the slope and y-intercept of a vertical line
    5·1 answer
  • Solve |x| &gt; 3 <br> a. {-3, 3}<br> b. {x|x &lt; -3 ∪ x &gt; 3}<br> c. {x|x &lt; -3 ∩ x &gt; 3}
    8·1 answer
  • Misty must pack 365 candles into 15 boxes. Each box must contain an equal number of candles. How many candles does she have left
    14·2 answers
  • If 35 student are in student council, and 60% are boys. How many girls are in student council?
    8·1 answer
  • I need help on #31 please
    6·1 answer
  • Help ASAP! Examine the table, which contains some points of a quadratic function. Which statements are true about the intercepts
    8·1 answer
  • Factoring polynomials multiply 2xy(x^2-xy^3)​
    11·1 answer
  • Sam read 6 chapters in 2 hours. If he continues to read at this same rate, how many chapters will he read in 1 day?
    10·1 answer
  • What is parallel and perpendicular to 2y=3x+8
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!