Mathematics High School

Two streets form an intersection. C and D are supplementary
angles. If the measure of C is 140° and the measure of D is
two times the value of x, what is the value of x?

Answers

Answer 1

Answer:

20degrees

Step-by-step explanation:

The sum of angle C and D is 180 degrees since they are supplementary

Given

m<C = 140 degrees

m<D = 2x

Taking the sum and equating to 180

140 + 2x = 180

2x = 180-140

2x = 40

x = 40/2

x = 20 degrees

Hence the value of x is 20degrees

Related Questions

1. Write the next three terms of the arithmetic sequence
1, 8, 15, 22, ...

Answers

Answer:

29,36,43

Step-by-step explanation:

Answer:

29

Step-by-step explanation:

the numbers are being added by 7

1 + 7 = 8

8 + 7 = 15

and so on

ohh plz help me i really could use it

Answers

Answer:

c

Step-by-step explanation:

HELP DUE IN 1 HOUR !!​

Answers

Answer:

-7/12

Step-by-step explanation:

Answer:

-7/12

Step-by-step explanation:

-1/3 - 1/4 becomes -4/12 - 3/12

this is because 12 is the common denominator for both fractions. then subtract the numerators because when you add or subtract fractions, the denominator stays the same.

-4 - 3 = -7

the answer is

-7/12

the answer cannot be simplified so it remains the same

Someone help with this please

Answers

i think it’s A but i’m not for sure but i think so but sorry if i’m wrong

find 5 + (-2)

What is the answer to this?

Answers

Answer:

3

Step-by-step explanation:

PLEASE HELP QUICK!! I am very confused and I don't understand this at all any help will be appreciated right answers will be marked brainliest :)!! Your project must have your name, title, a PRE-IMAGE, Reflection over the y-axis, and a Translation of (x+15, y-20)
50 POINTS!!

Answers

Answer:

you need to explain more of what you are wanting me to do befor I can answer this question

help please .........

Answers

Answer: .

Step-by-step explanation:

What would be the best method to solve
the system of equations below?
6x + 3y = 21
2x – 3y = -13

Answers

I would change 6x+3y=21 to y=-2x+7.
You can isolate the y value by subtracting the x to the other side. All the numbers have 3 in common, so you need to divide all of them by 3. I would then substitute the new equation into the 2x-3y=-13, making it 2x-3(-2x+7)=-13
You wove the equation, and once you get your x value, you needles to substitute it in the equation: y=-2x+7
The final answers will be x=1 and y=5

Elimination method is the best method to solve the system of equations below

What is Equation?

Two or more expressions with an Equal sign is called as Equation.

The given system of equations

6x + 3y = 21...(1)

2x – 3y = -13...(2)

Add equations (1) and (2)

6x+3y+2x-3y=21-13

8x=8

Divide both sides by 8

x=1

Now plug in x value in equation 1

6+3y=21

Subtract 6 from both sides

3y=15

Divide both sides by 3

y=5

By Elimination method we find the values of x and y.

Hence, Elimination method is the best method to solve the system of equations below

To learn more on Equation:

https://brainly.com/question/10413253

#SPJ2

Find the product.
Please help it means a lot thx
(3x + 7)^2

Answers

Answer:

9x + 49

Step-by-step explanation:

(3x+7)^2

9x + 49

(3,4) and (18,24) are ordered pairs on a line that represents a proportional relationship. which other ordered pair could be on the line?

Answers

Answer: (9,12), (6,8), (12,16), (15,20).......

Explanation:

How to solve and answer please.

Answers

Answer:

sin 77°

cos 49°

tan 22°

Step-by-step explanation:

use your calculator with trig functions to find the arcsin, arccos, and arctan

What is the value for A? What is the value for B? What is the value for C? What is the value for D?

Answers

Step-by-step explanation:

step 1. we must assume the ratio of flour to sugar is 2:1.

step 2. A = 2(3/4) = 3/2 1-1/2.

step 3. B = 1-3/4(1/2) = 7/4(1/2) = 7/8

step 4. C = 1(2) = 2

step 5. D = 2-1/2(1/2) = 5/2(1/2) = 5/4 = 1-1/4.

What percent of 120 is 42?
can you show your work, please

Answers

Solution for 42 is what percent of 120:

42:120*100 =

(42*100):120 =

4200:120 = 35

Now we have: 42 is what percent of 120 = 35

Question: 42 is what percent of 120?

Percentage solution with steps:

Step 1: We make the assumption that 120 is 100% since it is our output value.

Step 2: We next represent the value we seek with $x$x​.

Step 3: From step 1, it follows that $100\%=120$100%=120​.

Step 4: In the same vein, $x\%=42$x%=42​.

Step 5: This gives us a pair of simple equations:

$100\%=120(1)$100%=120(1)​.

$x\%=42(2)$x%=42(2)​.

Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS
(left hand side) of both equations have the same unit (%); we have

$\frac{100\%}{x\%}=\frac{120}{42}$
100%
x%​=
120
42​​

Step 7: Taking the inverse (or reciprocal) of both sides yields

$\frac{x\%}{100\%}=\frac{42}{120}$
x%
100%​=
42
120​​

$\Rightarrow x=35\%$⇒x=35%​

Therefore, $42$42​ is $35\%$35%​ of $120$120​.
It’s 35%

42/120 = 0.35

0.35 x 100 = 35%

-6 + -8 10 points plz help

Answers

Answer

The answer is negative 14.

Step-by-step explanation:

When you add a negative by a negative it equals a negative. Like if you add 1 + 1 it's going to equal 2 which is a positive, not a negative. So the answer is technically 8 + 6 which is 14 and all you have to do is add a negative sign.

Which method
HL
Asa
Sas
Sss
Aas pls help

Answers

Answer:

Step-by-step explanation:

ASA because you have the given angles and sides ≅ and the vertical angles are also ≅

Answer:

ASA

Step-by-step explanation:

Since you have already proved two pairs of consecutive angles and sides congruent, you can also prove vertical angles congruent.

nineteen less than a number is 25 write the equation

Answers

Answer:

6

Step-by-step e

GCF factoring introduction
Which expression is the result of factoring the expression below by taking out its greatest common factor?
16x^2-8x=?

Answers

right hell yeah you come to me alright (we gon be alright)
it also equals 3032

All of the following are equivalent except
1) 4 y
2) (4) (Y)
3) 4•Y
4)4+ y

Answers

4 because all of the others involve multiplication and 4 involves addition.

solve the inequality 3x + 4 < 14​

Answers

X right arrow ➡️ 6 hope this helped

Use the following function rule to find f(12). f(x)=10x-4, f(12)=

Answers

f(x)=10x-4, f(12)= 116

The value of the function f(x) = 10x - 2 at f(12) is 114.

What is a function?

A function can be defined as the outputs for a given set of inputs.

The inputs of a function are known as the independent variable and the outputs of a function are known as the dependent variable.

Given, A function f(x) = 10x - 4.

To find f(12) we have to replace x with 12 in the function f(x).

∴ f(12) = 10(12) - 4.

f(12) = 120 - 4.

f(12) = 114.

learn more about functions here :

https://brainly.com/question/12431044

#SPJ2

What is the coefficient of 8 term in the expansion of 2( + 1)10?

Answers

Answer:

180

Step-by-step explanation:

2(8+1)10

add the number in parenthesis

2(9)10

18x10

180

please help!

One number is 5 more than another. The sum of thrice the small plus twice the larger is 50

What are the two numbers?

A: 8
B: 10
C: 7
D: 13
E: 5
F: 15
G: 12

Answers

A and D I did the maths

Ed earns $40 working at a supermarket after school. He earns $64 working there on a
Saturday. He worked 2 days after school and 1 Saturday, How much did he earn that week?

Answers

Answer:

$144

Step-by-step explanation:

$40+$40+$64= $144

(s3−2s−9)+(2s2−6s3+s)

Answers

−5x 3 −x−9+2x 2

(I think) my apologies if it’s incorrect

The table below represents a function. Which of the following equations could be its function rule?

Answers

Answer:

it's the 3rd choice, Y= -3x

Sally puts $2,500 in a bank account. She takes it out 10 years later and with interest, now has $4,100. What is the percent change?

Answers

Answer:

64%

Step-by-step explanation:

Find the percent change by finding the difference between the amounts, then dividing it by the original amount

(4,100 - 2,500) / 2,500

1600 / 2500

= 0.64

So, the percent change is 64%

can someone help me please?

Answers

Answer:

a. 120 degrees

b. 240 degrees

c. 24π

d. 8π

e. 16π

f. 144π

g. 48π

The answers..............................

Answers

The answer is A and D your welcome :)
A and d that easy my guy

43. Given the conditional: "If a bachelorette does not receive a rose, then she must leave the
show." The converse would be:

A. If a bachelorette leaves the show, then she did not receive a rose.

B. If a bachelorette does not leave the show, then she did receive a rose.

C. If a bachelorette does receive a rose, then she must not leave the show.

D. A bachelorette must leave the show if and only if she does not receive a rose.

Answers

Answer:

the first time I get to the house w the flow I can go all night w and get a

a12 means that the exponent of an arithmetic function is 12


TRUE or FALSE

Answers

The answers is true
Other Questions
who was the 30th to president of the United States of America Describe the political actions that led to successful conservation in both stories. what is the probability of rolling a 3 y = - 2x + 12x - 2y = 4Solve systems of equations by substitutions What is 40% of 75? Use the ratio table to solve the percent problem.Part Whole? 7540 100 I need help plz answer On a cold, winter day, Sheena rubs her hands together to warm them up. How could Sheena actions be used to explain the Law of Conservation of Energy? What is the sum of 5/7 + 5/6? A. 10/42B. 10/13C. 1 & 23/42D. 6 & 5/42 Martina is 3 inches less than twice as tall as her little brother.In the space below, write an expression for Martinas height. Then, use the expression to find Martina's height if her little brother is 28 inches tall.Help ASAP ----3Three-year-old Max cries when he sees that his 6-year-old sister has two cookieswhile he only has one. Tyler, who is babysitting his younger siblings, remembers aconcept he learned in psychology class, so he reaches over and breaks Max's cookieinto two equal halves. Max gleefully points to his sister's cookie and says, "Yay! I nowhave the same amount of cookies as Sisty!" Tyler used his understanding ofto end Max's tantrum.object permanenceconservation12O mental trickerynumeracy Which ecosystem is the least stable?A.savannaB.coral reefC.rain forestD.cornfield What are the aims of standardization heko me out thanks you ! A portion of FICA that is paid to provide eligible retired workers anddisabled Americans with medical insurance."A.Social Security taxB.State Income taxC.Federal Income taxD.Medicare what multiplies to -15 and adds to -3 The Robot Factory is a learning center where children can build robots. The project fee per visit is $18, and each hour of time (x) at the factory costs $6. Jesse goes to the Robot Factory one afternoon, and the total charge for his visit is $33. Write and solve and equation to find the number of hours Jesse spent at the Robot Factory. 3. How much time does it take for a bird flying at a speed of 45 kilometers per hour to travel adistance of 900 kilometers? 4) The length of a rectangle is 7 inches more than the width. The perimeter of the rectangleis 178 inches. Find the width of the rectangle. Help? Ill give brainliest which symbol will make the following statement true? |27|_____ 19