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
Alja [10]
2 years ago
10

Work out the value of X.

Mathematics
2 answers:
velikii [3]2 years ago
4 0

Those are supplementary angles, therefore:

4x+5x=180\\9x=180\\x=20

sergeinik [125]2 years ago
4 0

Answer:

  • x = 20  {}^ \circ

Step-by-step explanation:

That are supplementary, means:

They add up to 180°.

Here is the same case.

Given angles are:

  • 4x & 5x

Solved:

  • 4x + 5x = 180  {}^ \circ

Combining them,

  • 9x = 180 {}^{ \circ}

Transposing 9 to RHS,

  • x =  \cfrac{ \cancel{180}  \: {}^{20} }{ \cancel9}

  • x = 20

Hence, value of x is 20.

You might be interested in
Solve the system of equations by substitution.<br> 3/8x +1/3y=17/24<br> x+7y=8
const2013 [10]

Answer:

x=1, y=1.

Step-by-step explanation:

From the second equation:

x = 8 - 7y, so substituting for x in the first equation:

3/8(8 - 7y) + 1/3y = 17/24

3 - 21/8 y + 1/3y = 17/24

1/3y - 21/8y = 17/24 - 3

Multiply through by 24:

8y - 21*3 y = 17 - 72

8y - 63y = -55

-55y = -55

y = 1.

And  substituting for y in the second equation:

x + 7(1) = 8

x = 8 - 7

x =  1.

3 0
3 years ago
If 2 angles are both right angles then they are congruent. Would the converse of this statement be true?
yKpoI14uk [10]

Given:

The statement is: If 2 angles are both right angles then they are congruent.

To find:

The converse of the given statement and then check whether it is true or not.

Solution:

We know that,

Statement: If p, then q.

Converse : If q, then p.

The statement is: If 2 angles are both right angles then they are congruent.

So, the converse of this statement is:

If 2 angles are congruent then both are right angles.

This statement is not true because if 2 angles are congruent then it is not necessary that the angles are right angles.

Therefore, the converse of this statement is not true.

4 0
3 years ago
If a cubic polynomial has zeros at x= -4, x=0 and x=7, then
maw [93]
I think the answer ia A that what i think
5 0
3 years ago
Read 2 more answers
Can someone help me out with this problem?...REAL ANSWERS ONLY ​
aliina [53]
Three quarts bc the area of the wall is 300ft squared and each quart covers 100
3 0
3 years ago
3. If the mZLKI - 174º and KR bisects LLKI, then find the mLLKR.
lisov135 [29]
I don’t know sorry byeee
7 0
3 years ago
Other questions:
  • Which of the following is true about the quotient below?
    11·2 answers
  • What is the value of x in the equation 6 ( x+5 ) =3 (x -14) ? A.-1 B. -4 C.-6 D. -24
    5·2 answers
  • Suppose the mean height for adult males in the U.S. is about 70 inches and the standard deviation is about 3 inches. Assume men’
    10·1 answer
  • HELP! i’m confused! question is in the picture
    8·1 answer
  • natalie guessed on the last four true or false questions on her math quiz. what is the probability that she got all four quiz qu
    11·1 answer
  • Which of these sets of measurements represents the lengths of the sides of a right triangle?
    6·1 answer
  • What is the Evaluate of<br>1. 8!=<br>2.<br>10!=<br>3. 6!=<br>10!<br>9!!<br>4.<br>5.<br>7!<br>4!2!​
    6·2 answers
  • How can -6 1/3 be expressed as the sum of it's integer and fractional parts?
    14·2 answers
  • What’s the connection between input and output in this question
    10·2 answers
  • there are 5 different math books, 1 social studies book, and 2 different science books on the shelf. how many different ways can
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!