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
lubasha [3.4K]
3 years ago
12

WILL MARK BRAINLIEST! PLEASE HELP MEH!Use the relationship between the angles in the figure to answer the question. Which equati

on can be used to find the value of x? Drag and drop the equation into the box.
A) x=180−31+40
B)x=90−40
C)​​x=180−(31+40)
D)​​x=90−(31+40)

Mathematics
2 answers:
olya-2409 [2.1K]3 years ago
5 0
A straight line (or two rays in a  straight line) = 180o
to find x start with this equation
31 + x + 40 = 180 Now get all the numbers on the right.
(31 + 40) + x = 180
x = 180 - (31 + 40)
Only A or C can be correct. It is C, but you have to be very careful how you eliminate A
C <<<< answer.


x = 180 - 31 - 40 is the correct way to remove the brackets. 
x = 180 -  71
x = 109

There are better ways to do this particular question without using brackets.
Angelina_Jolie [31]3 years ago
3 0

Answer:

C. x=180^o-(31^o+40^o)  

Step-by-step explanation:

We have been given a figure of angles formed on a straight line.

Since we know that the angles on a straight line add up-to 180 degrees. Upon using this property we can set an equation as:

31^o+x^o+40^o=180^o

Let us subtract 40 and 31 degrees from both sides of our equation to solve to x.

31^o-31^o+x^o+40^o-40^o=180^o-31^o-40^o    

x=180^o-31^o-40^o

Upon factoring negative sign from right side of our equation we will get,

x=180^o-(31^o+40^o)

Therefore, the equation x=180^o-(31^o+40^o) can be used to find the value of x and option C is the correct choice.


You might be interested in
Need to know the answer
Rzqust [24]
Here you go I hope this helps.

8 0
3 years ago
Read 2 more answers
A​ whale-watching tour boat cannot operate if the total passenger weight is more than 3 comma 150 comma 000 grams. What is the m
Andru [333]

Answer:

45

Step-by-step explanation:

7 0
3 years ago
Stacy has two job offers for sales jobs. For job A, she would earn a monthly salary of $3,600 and no commission. For job B, she
storchak [24]

Answer:

Job A

Step-by-step explanation:

Job A is $3600 a month while Job B:

5% of $50000 is $2500. $2500 + $1000 = $3500.

$3500 < $3600

5 0
3 years ago
gabriella wants to tile a room with an area of 320 square feet. the width of the room is 4/5 its length. what are the length and
Salsk061 [2.6K]
Assuming the shape of the room is a rectangle :

Area = Width x Length.

Let's call width "w" and length "l" . Now if, the width is 4/5 of the length that means 4/5 times length gives us the width, like this :

w=\frac { 4 }{ 5 } \cdot l

As given in the question, area of the rectangle is 320 square feet. And as I said before area of a rectangle can be found by multiplying its length and width. 

w.l=320

w=\frac { 4 }{ 5 } \cdot l , we can plug w's value in the previous equation to find "l". 

\frac { 4 }{ 5 } \cdot l\cdot l=320\\ \\ \frac { 4 }{ 5 } \cdot { l }^{ 2 }=320\\ \\ { l }^{ 2 }=320\cdot \frac { 5 }{ 4 } \\ \\ { l }^{ 2 }=\frac { 320\cdot 5 }{ 4 } \\ \\ { l }^{ 2 }=\frac { 1600 }{ 4 } \\ \\ { l }^{ 2 }=400\\ \\ \sqrt { { l }^{ 2 } } =\sqrt { 400 } \\ \\ l=20

Let's plug "l"s value in the equation.

w.l=320\quad \Longrightarrow \quad w\cdot 20=320\quad \Longrightarrow \quad w=\frac { 320 }{ 20 } \quad \Longrightarrow \quad w=16

The length is 20 feet and the width is 16 feet.


6 0
3 years ago
Read 2 more answers
Write 10ab + 15b in factored form.
Evgen [1.6K]

Answer:

5b(2a+3)

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • A line contains the points (-1, 6), (6, k) and (20, 3). What is the value of k?
    11·1 answer
  • I am in major need of help!!!!!!
    5·1 answer
  • What operation is implied between the whole number and fraction parts of the mixed number 4 2/3
    12·1 answer
  • Which of the following is the graph of the equation y = 2x + 3?
    5·2 answers
  • Humberly has $24 and they want to buy at least 8 containers of yogurt. Yogurt is packaged in both large and small containers. La
    8·1 answer
  • 9-9÷9+9-9÷9=??????<br><br><br> 25 points <br><br><br> and brainits for the first right answer
    5·2 answers
  • You may use a calculator for this item.
    11·1 answer
  • Which equation below represents a rate of change of -3?
    8·1 answer
  • John believes that the amount of sleep he gets the night before a test and his score on that test are inversely related. On his
    5·1 answer
  • the entire school went 250 students went to the soap box derby the math club went in 2 busses each holding 6 students
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!