How do I solve for X?

How Do I Solve For X?

Answers

Answer 1

All the angles should add up to 360°.

8x+10x+9+21x-12+90=360°

Group like terms together.

So,8x+10x+21x+9+90-12=360

39x+87=360

39x=360-87

39x=273

x=7


Related Questions

pleaseeee help i don't understand how to do this

Answers

Answer:

[tex]x=\frac{5}{k}[/tex]

Step-by-step explanation:

Given expression is,

[tex]\text{log}_{3^k}243=x[/tex]

By using the law of logarithm,

[tex](3^k)^x=243[/tex]

[tex]3^{kx}=243[/tex]

[tex]3^{kx}=3^5[/tex]

By comparing exponents on both the sides of the equation,

[tex]kx=5[/tex]

[tex]x=\frac{5}{k}[/tex]

Therefore, [tex]x=\frac{5}{k}[/tex] will be the answer.

The value of y is directly proportional to the value of x. If y = 35 when x = 140, what is the value of y when x = 70?

Answers

Answer:

17.5

Step-by-step explanation:

y=kx

35 = k(140)

k = 0.25

(k is constant of proportionality)

y = (0.25)(70)

y=17.5

Which is warmer, the coldest temperature recorded in the USA, or the average temperature on Mars?

Answers

Answer:

average temperatures on mars, then you get the hottest temperatures...

Step-by-step explanation:

Forty-four people paid $1.85 each for a hot dog at a vending cart in Altura Park. How many dollars did they pay combined?

Answers

Answer:

They paid 81.4 all together.

Step-by-step explanation:

Multiply 44 times 1.85 as each person paid $1.85.

44*1.85=81.4

Question 6:
Insert Picture of
David rode his bicycle for 6 hours and he
jogged for 8 hours during the past 2
weeks. If he continues bicycling and
jogging at the same rate, how many
hours will he ride his bicycle and jog in
24 weeks?
A. 192 hours
B. 336 hours
C. 168 hours
D. 14 hours
Need Help

Answers

David rode his bicycle for 6 hours and he jogged for 8 hours during the past 2 weeks. We can say that per week, he rode his bicycle for 3hours and jogged for 4 hours. And he will jog for: 24 * 4 = 96 hours. Your welcome good luck

Consider the figure to the right.
T
Given: CT PM, CT 1 PM
Prove: CA - MA
А,
P4
M
Shown below are the statements and reasons for the proof.
They are not in correct order.
Statements
Reasons
1.
ACAT AMAP
AAS
II.
LCAT ZPAM
Vertical Angles Theorem
III.
CT & PM, CT || PM
Given
IV.
CAMA
CPCTC
V.
LCTA E LMPA
Alternate Interior Angles Theorem.
Which of these is the most logical order for the statements and reasons?
(А.
I, II, III, IV, V

Answers

Answer:B

Step-by-step explanation:

Just did it on math nation

The most logical order for the statement and reasons III, II, V, I, IV. Therefore, option B is the correct answer.

CP=PM, CT||PM   (Given)

∠CAT=∠PAM (vertical angles theorem)

∠CTA=∠MPA (Alternate interior angles theorem)

ΔCAT≅ΔMAP (AAS)

CA=MA (CPCTC)

The most logical order for the statement and reasons III, II, V, I, IV. Therefore, option B is the correct answer.

To learn more about the congruent theorem visit:

https://brainly.com/question/24033497.

#SPJ7

Joey is trying to determine the average weight of a frog found at his high school's pond. The Algebra II class randomly selects 50 frogs from the pond and weighs them. Their results are shown. What is the likelihood that a frog's weight was between 5.2 and 5.4 ounces, inclusive?

Answers

Answer:

0.06

Step-by-step explanation

GHJK is a square with diagonals intersecting at L. Given that GH=2 and GL=square root of , complete the statement

Answers

Answer:

GL = square root of 2 = √2

Step-by-step explanation:

Given: GHJK is a square and its diagonals intersect at L

GJ and HK are its two diagonals.

We know that in a square diagonals bisect each other and if length of side is a, then length of its diagonal = √2 a.

Therefore, GJ=HK = √2×2

Since, diagonal intersect at L , L is mid point of GJ and HK

Therefore, GL = √2×2/2 = √2

Hence, GL = square root of 2

Which part of the human body is more complex, your heart or your circulatory system?

Answers

Circulatory system as it is full system and the heart is part of it.
Answer:

Heart

Explanation:

heart is central to the circulatory system as it is the fist-sized pump that circulates the blood throughout the body.

Which of the following is an arithmetic sequence?
A. 0, 3, 8, 15, 24, 35, ..
B. 9, 4, -1, -6, -11, -16, ...
C. 1, 3, 6, 10, 15, 21, ..
.
D. -1, 0, 1, 0.3, 0, ...

Answers

Answer:

B is an arithmetic sequence because the number that you add or subtract between each number has to match

Which of the following is not a polynomial?
A. 5x^10 - 4x^8 + 2
B. 3x^4
c. x^8 + 2x^3 + 7
D. 5 - x^2 + 7 x^0

Answers

Answer:

B

[tex] {3x}^{4} [/tex]

A polynomial must have a constant which is absent in equation B

I agree with the person on top have a beautiful day:)

I am doing a science presentation. I have to have a question to research over. It’s over the Periodic Table of Elements. Please provide several options. Please make these not about mass number etc. Please provide questions that are researchable. If good answers are provided, I’ll mark brainliest.

Answers

Answer:

What effect does the pH of water have on radish seed germination?

1 What is the universe made of?

2 How did life begin?

3 Are we alone in the universe?

4 What makes us human?

5 What is consciousness?

6 Why do we dream?

7 Why is there stuff?

8 Are there other universes?

9 Where do we put all the carbon?

10 How do we get more energy from the sun?

11 What’s so weird about prime numbers?

12 How do we beat bacteria?

13 Can computers keep getting faster?

14 Will we ever cure cancer?

15 When can I have a robot butler?

16 What’s at the bottom of the ocean?

17 What’s at the bottom of a black hole?

18 Can we live for ever?

19 How do we solve the population problem?

20 Is time travel possible?

21 What happens in the gray zone between solid and liquid?

22 What is matter made of?

23 Why is gravity so weird?

24 Why does time seem to flow only in one direction?

25 Where did all the antimatter go?

26 What happens in the gray zone between solid and liquid?

27 Can we find a unified theory of physics?

28 How did life evolve from nonliving matter?

29 What effect does the pH of water have on radish seed germination?

Step-by-step explanation:

please mark this answer as brainliest, thanks and give a 5 star rating

Answer:

I don't know if my answers are good but here we go

Options:

What are the 3 thing that make up the periodic table?

How can we memorize the periodic table easily?

Why was Mendeleev's "Periodic Table" useful to scientists?

Why is the periodic table called like that?

6_7/8 Rename the mixed number by regrouping?

Answers

Answer:

We have 5 slices and

each whole is made up

of 4 slices,

.

We have 6 slices and

each whole is made up

of 4 slices,

.

Altogether, we have 2

wholes and 3 quarters,

Step-by-step explanation:

Step 1: Keep the denominator the same.

Step 2: Add or subtract the numerators.

Step 3: If the answer is an improper form, reduce the fraction into a mixed numbe

Hey can you help me fast!! I will give brain list if the Answer is right!!

Answers

Answer:

5 hours

Step-by-step explanation:

2×2+1=5 and this is because 2×2=4 and 4+1=5

i need help plss its hard for me pls help and show the WORK plsss

Answers

is there a picture of the question?

What is the domain of the function shown in the graph?

Answers

It might be C but I’m not to sure

A collection of nickels and dimes is worth 25 dollars. There are twice as many nickels as dimes. How many of each are there? Use let statements and solve algebraically.
May I please get an explanation too?

Answers

There are 125 dimes and 250 nickels.

A dime is 0.1$ and a nickel is 0.05$. The total number of them should give 25$.
The number of nickels are twice the number of dimes. So lets call the number of dimes X, then the number of nickels should be 2X.

Putting it in a formula: 0.05(2X) + 0.1X = 25.

Then by solving we get:
0.1X + 0.1X = 25
0.2X = 25
X = 25/0.2 = 125


6th ans pls anyone?

Answers

Answer:

Hi there your answer will be

Zero since when you are dividing with zero your answer will always be zero

NO MATTER WHAT IS YOUR VARIABLE

Step-by-step explanation:

EXAMPLE IF I DID A/B DIVIDE BY 0 MY ANSWER WILL ALWAYS BE ZERO

SO YOUR ANSWER TO NUMBER 6 IS ZERO/ UNDEFINED DEPENDS ON WHAT YOUR TEACHER WANTS.

x=5 so what is (x+3)² =​

Answers

(3+x)²

(5+3)²=

8²=

64

.

.

.

.

Answer:

64

Step-by-step explanation:

Since x=5

(5+3)^2

(8)^2= 64

What number will complete the square for the following equation:
x² + 8x =6

Answers

Answer:

4² = 16

Step-by-step explanation:

x² + 8x = 6x² +2*x*4 + 4² = 6 + 4²(x + 4)² = 22

Number needed is 4² = 16

Answer:

Solution given:

x² + 8x =6

x²+2.x.4+4²-4²=6

(x+4)²=6+16

(x+4)²=22

so

no needed is 4² or 16.

What fraction of the large square is the parallelogram?

Answers

Answer:

maybe 14/20

Step-by-step explanation:

Pedro is ordering a scoop of ice cream. For the flavor, he is given the option of chocolate,
strawberry, or vanilla. For the size, he is given the option of small, medium, or large. For the
cone, he is given the option of a sugar cone, waffle cone, or cup. How many possible order
combinations are there?

Answers

Answer:

Hope this helps :D

The answer is 27(If i`m not mistaken)

Answer:

27 combinations

Step-by-step explanation:

There are options:

Flavor = 3Size = 3Cone = 3

Number of  possible combinations:

3*3*3 = 27

Find the area of each sector. Round your answer to nearest tenth

Answers

Answer:

A

Step-by-step explanation:

The area (A) of the sector is calculated as

A = area of circle × fraction of circle

    = πr² × [tex]\frac{150}{360}[/tex]

    = π × 12² × [tex]\frac{15}{36}[/tex]

    = 144π × [tex]\frac{5}{12}[/tex] ( cancel 144 and 12 by 12 )

    = 12π × 5

    = 60π

     ≈ 188.5 Km² ( to the nearest tenth ) → A

if you are right you will get a brilliance
A rhombus has side lengths of 4 centimeters and an area of 12 square centimeters. What is the height of the rhombus?
3 cm
6 cm
4 cm
8 cm

Answers

Answer:

3cm

Step-by-step explanation:

I got the answer right on my quiz :P

Give the guy above me brainliest tho :)

The height of the rhombus is equal to 9 centimeters.

What is area ?

Area is the measure of a region's size on a surface. The area of a plane region or plane area refers to the area of a shape or planar lamina, while surface area refers to the area of an open surface or the boundary of a three-dimensional object.

here, we have,

To calculate the height of the rhombus, we will follow the steps below;

write the formula for calculating the area of a rhombus

area of a rhombus = b × h

where h is the height of the rhombus and b is the base of the rhombus

From the question given,  area of the rhombus = 12 square centimeters  

and length of sides of the rhombus is 8 centimeters.

we can now proceed to insert the values into the formula and then solve for h

area of a rhombus = b × h

i.e.  12 = 4 × h

Divide both-side of the equation by 4

12/4  =  4/4 × h

3 =  1× h

3 = h

h =3 centimeters

The height of the rhombus is equal to 3centimeters.

To learn more on Area click:

brainly.com/question/20693059

#SPJ3

if EFGH is a trapezoid, find its perimeter.​​

Answers

40.5
Trust me i did it and got it right!! if its wrong lmk and i can explain it for u

"Both of us got to be just like Joe Louis toward the end" is an example of... *

metaphor
personification
alliteration
allusion

Answers

This is a metaphor because it was comparing

Find the diameter of a cylinder with a volume of approximately 235.5 inches cubed and a height of 3 in.​

Answers

the answer is 9.997 inches
Answer: d = 10

Explanation:

V = pi x d^2/4 x h
235.5 = 3.14 x d^2/4 x 3
235.5 = 9.42 x d^2/4
235.5/9.42 = d^2/4
25 = d^2/4
25 x 4 = d^2
100 = d^2
10 = d

14. Find mMK please :)

Answers

Answer:

Step-by-step explanation:

11) strategy:  since they tell us. indirectly,  that the length of  JK is the same as LM then we can set those two equal, solve for X  and then.. when we have X we can figure out the lenght of JK  and LM and then just divide that by 2 go get PK  ( :0 Player Killer ???  no , not that PK)    

solve JK and LM

3x + 23 =9x-19

42 = 6x

7 = x

now that we know x = 7 plug it into either equation to come up with the length of JK or LM .  I'll pick JK just b/c it was 1st

3(7) + 23 = JK

21+23 = JK

44 = JK

now take half of 1/2*JK= 22  that is PK    ( are you sure that 's not player killer?)

PK = 22

12) strategy: set the two arcs BG and GC equal and solve for X, then plug x into either equation and the multiply the answer by 2 to find arc AB

9x-20 = 5x + 28

4x = 48

X = 12

9(12) -20 = BG

88 = BG

2*88 + AB

176 = AB

13) done

14)  strategy: find the angle at L,  and that will also be the arc of MK

copy and past the below helpful trig functions into your computer

Use SOH CAH TOA to recall how the trig functions fit on a triangle

SOH: Sin(Ф)= Opp / Hyp

CAH: Cos(Ф)= Adj / Hyp

TOA: Tan(Ф) = Opp / Adj

copy and past the above :

use which ever trig function you want , we have all the sides of the triangle, I'll use CAH

Cos(Ф) = 9/15

Ф = arcCos(9/15)

Ф = 53.13010°

arc MK = 53.13010°

15)   strategy:  arc JK is just 2 times MK

2*MK = 106.26020°

arc MK = 106.26020°

16) find arc JPK   strategy:  JPK is just the remaining part of a full circle of 360 - MK  = 253.7397°

arc JPK = 253.7397°

pls help

any links will be flagged because there is a person going around trying to get info by sending a link that supposedly answers your question

Answers

Answer:

Same to me he sent a link to like almost every question it didn't work for me

Step-by-step explanation:

The length of a rectangle is three times the width. The area is 108cm. Find the
dimensions of the rectangle.

Answers

the dimensions of the rectangle are 9 and 3

Step-by-step explanation:

108÷4=27 and 27 ÷3=9

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