Mathematics High School

4x+8y=20 and -2x+y=-15
System of equations?

4x+8y=20 And -2x+y=-15System Of Equations?

Answers

Answer 1

Answer:

a

Step-by-step explanation:

Related Questions

URGENT: WILL MARK BRAINLIEST

Answers

Answer:wait 15 min then I will have thee answer

Step-by-step explanation:

What is the equation of this line

Answers

Answer:

y = 1/2x - 3

Step-by-step explanation:

Slope: Up 1 over 2

Y-Int: -3

y=mx+b

PLEASE HELP ASAP!!!!!

Answers

Answer:

C. Have a good day. :)

Step-by-step explanation:

PLS DONT REPORT ME IF U DO U DONT WANT TO KNOW WHAT WILL HAPPEN
So if you have 2x2 amount of apples but then you only have 3 apples whats wrong with this equation?

Answers

Answer:

2x2 is 4 but you have 3 apples?

Step-by-step explanation:

Answer?!?????????????

Answers

Answer:

A i think

Step-by-step explanation:

Answer:

its   c i hope i helped-shelby

Step-by-step explanation:

m BXA = 30° 20', m CXB = 40° 35'
m CXA
°
'

Answers

Answer:

Please make me brain list

Step-by-step explanation:

Can somebody help me on 14?

Answers

It isn’t them going up or down a hill. It is the speed changing

Answer:

It is the speed changing

Step-by-step explanation:

becauses it is speed vs time

A soccer team practices 3 times a week. Each practice lasts for 110 minutes. The team practiced for 14 weeks during the season.

Answers

Answer:

i just answerd this on a nother queston from u go look at that

Step-by-step explanation:

If f(x)=−6x+4, Find f(x)=46

Answers

Answer:

Step-by-step explanation:

-6x + 4 = 46

-6x = 42

x = -7

Help plss!!!
A jewelry store paid $75 for a necklace at
wholesale cost. The store will sell the necklace
for $250. What is the percent markup on the
necklace?

A. 175% increase
B. 250% increase
C. 233% increase
D. 300% increase

Answers

Answer:

75 increased by 233% = 249.75 if you are rounding up this is the answer

Step-by-step explanation:

This is true because 249.75 is the closest the other guy who wrote the wrong answer is lying. (update) it just got deleted i told you

What side in the second trapezoid corresponds to CD?

ABCD≅RSTU

Answers

TU side, the letters are written accordingly

Answer:

TU

Step-by-step explanation:

What is the value of x?

Answers

Answer:

150

Step-by-step explanation:

Answer: 70

Step-by-step explanation: because 40 + 70 is 110. There is a sum of 180 degrees in a triangle. And 180- 110= 70.

pls give me brainliest

ABC is a straight line. which equation can be used to find the measure of the unknown angel?

Answers

Answer:

A: 180 -45

Step-by-step explanation:

Since it is a straight angle, it will equal 180 degrees. Since 45 is already taken, u would subtract it from 180.

180-45=135

thus, your answer is 180-45

hope I helped!!!

help plsss .....!!!!

Answers

Answer:

p=-7

Step-by-step explanation:

30+6p=7(p+6)-5

30+6p=7p+42-5

30+6p=7p+37

6p-7p=37-30

-1p=7

p=-7

There are 12 students in the gym class. If 4 students can sit on 1 bench, how many benches are needed for all students ?

Answers

Answer:

3 benches needed

Step-by-step explanation:

Answer:

3 benches

Step-by-step explanation:

4 people to one bench

12 people divided by 4 = 3 benches

Evaluate the equation for the indicated value, f(n)=5n+8 for f(4),

Answers

you would need to put 4 in for (n)so, 5(4)+8 then solve. 5 times 4=20 plus 8 is 28. I hope I could help!

The value of the function f(n)=5n+8 for f(4) will be 28.

What is a function?

A function is defined as the expression that set up the relationship between the dependent variable and independent variable.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given function is f(n)=5n+8. The value of the function at equal to 4 will be calculated as below:-

f(n)=5n+8

f(4) = ( 5 x 4 + 8 )

f(4) = 20 + 8

f(4) = 28

Therefore, the value of the function f(n)=5n+8 for f(4) will be 28.

To know more about functions follow

https://brainly.com/question/17043948

#SPJ2

Matter is in a liquid state when its temperature is between its melting point and its boiling point. Suppose that some substance has a melting point of negative 35.84 degrees Upper C and a boiling point of 310.69 degrees Upper C . What is the range of temperatures in degrees Fahrenheit for which this substance is not in a liquid​ state? (Hint: Upper C equals five ninths left parenthesis Upper F minus 32 right parenthesis ​) Express the range as an inequality. Let x represent the temperature in degrees Fahrenheit. What is the range of temperatures for which this substance is not in a liquid​ state? nothing ​(Type an inequality or a compound inequality. Simplify your answer. Use integers or decimals for any numbers in the expression. Round to three decimal places as​ needed.)

Answers

Answer:

96.512 °F < x < 591.242 °F

Step-by-step explanation:

We are given;

Melting point = 35.84 °C

Boiling point = 310.69 °C

Now, we are given that formula to convert °C to °F is;

°C = (5/9)°F

Thus if the temperature in Fahrenheit is x, then;

Melting point is; 35.84 °C = (5/9)x°F - "32"

x = ((9 × 35.84)/5) + 32

x = 96.512 °F

Similarly, for Boiling point;

Boiling point is;

310.69 °C = (5/9)x°F - "32"

x = ((9 × 310.69)/5) + 32

x = 591.242 °F

Now, we are told that matter is in its liquid form when it is between melting and boiling point.

Thus, range of x in inequality form is;

96.512 °F < x < 591.242 °F

Suppose that you plan on taking a summer job selling magazine subscriptions. The magazine company will pay you 75 cents for selling the first subscription. For each additional subscription sold, the magazine company will pay you 5 cents more than what was paid for the previous subscription. How much will you earn by selling 150 magazine subscriptions?

Answers

Answer:

671.25

Step-by-step explanation:


[tex] \frac{100}{1000} = {10}^{x} [/tex]
​

Answers

Exact Form:
X=1/100

Decimal form:
X=0.01

Hey can anyone help me I need this ASAP please:)

Answers

Answer:

keep adding 35 to the graph

Step-by-step explanation:

Molly wants to buy a dress that costs $20. She has a coupon for 40% off, and there is a 10%
sales tax. How much will she pay altogether? Answer the questions to find out. 3.How much is the 10% tax on the sale price? Explain how you found your answer.​

Answers

Answer:

13.20$ :)

Step-by-step explanation:

40% off of 20$ is 12$ and 10% of 12$ is 1.20$ add that and you get 13.20$

Please help, will mark brainliest for the correct answer

Answers

Answer:

C. 23/21

Step-by-step explanation:

Your answer is c 23/21
Please mark brainliest

Idk how to do this?!!

Answers

Answer:

no idea you're welcome

is 13/3 rational or irrational and why?

Answers

Answer:

The decimal form of 13/3 is a rational number. and decimals are rational

2x2 – 3x -9= (Factor completely.)​

Answers

Answer:

The answer is 31. :)

Step-by-step explanation:

it should be (2x+3) * (x-3)

Solve for c in the proportion.

Answers

Answer:

c = 3

Step-by-step explanation:

you have to multiply then divide

9 × 1 = 9

then divide...

9 ÷ 3 = c = 3

there you have it, folks

19
Tell whether the triangles are similar. Explain.
Please help!!!!!!!

Answers

Answer:

Step-by-step explanation:

Help this person she really needs help! XD

Treven and Carlos entered a hot dog eating
contest. Carlos ate 7 more than the amount of hot
dogs that Treven ate. Carlos ate 17 hot dogs. How
many hot dogs did Treven eat?
Write the equation and solve.

Answers

Answer:

10

Step-by-step explanation:

17-7=10

Phoebe bought 2/3 of a yard of green ribbon and 1/3 of a yard white ribbon to use on her quilt. She decided to exchange 1/3 yard of white ribbon for 1/3 yard of yellow ribbon. How much white ribbon does phoebe have to use on her quilt?

Answers

She has no more white ribbon because she exchanged it for yellow.

A 4-pack of museum tickets costs $30.28. What is the unit price?

Answers

Answer:

7.57

Step-by-step explanation:

30.28/4 = 7/57

Other Questions
6. The table shows the equations Ms. Valez discussed in math class today.Explain the pattern of zeros in the product when multiplyingby powers of 10. is a relation that is also a function.{(1,6), (1,7), (7, 8), (8, 9)}{(2,3), (3, 2), (2, 4), (4, 2)}{(0, 1), (0, 2), (0, 3), (0,4)}|{(1, 1), (3, 2), (6,3), (8,4)} What does this conflict reveal about the dogs?The character vs. character conflict shows Buck'sassertiveness as leader.O The character vs. character conflict shows theteam's dislike of Buck.The character vs. society conflict shows the dailyroutine in camp.The character vs. society conflict shows the team'scooperation on the trail. Jeremy bought a $60 pair of sneakers on sale for 15% off. Then, he used a coupon that gave him an additional 10% off. Can Jeremy find the cost of the sneakers by adding the percents?by finding 25% off of $60, andby finding 15% off of $60, and then subtracting 10% from that cost.Complete the explanation.25% off of $60 is equal to $ .15% off of $60, then subtracting 10% from that cost, is equal to $ .Are the two total costs equal? Enter yes or no. Selections must be from Unit 1: William Bradford (U1L2), Anne Bradstreet (U1L4), Phillis Wheatley (U1L4), Jonathan Edwards (U1L5), Olaudah Equiano (U1L6), Thomas Paine (U1L7), and Thomas Jefferson (U1L8).12a. Identify two early American/colonial authors from the list above along with a text/excerpt they wrote. Possible Selections: Author choice 1 and selection:Author choice 2 and selection:12b. What is similar and/or different about each authors purpose in your two selections above? (Is it to inform, explain, persuade, create, express, reflect, etc.?) 12c. What is similar and/or different about each authors audience in the two selections above? (Think about who the author is writing to.)12d. What is similar and/or different about each authors style in the two selections above? (Think about themes, word choice, tone, form, etc.) I got a comment saying "it must be in english/spanish" does that mean one of them or both ? Rectangle A measures 8 inches by 4 inches. Rectangle B is a scaled copyof Rectangle A and is multiplied by the scale factor 7. What are thedimensions of Rectangle B? HELP ASAP 20 POINTS Which moral was Aesop most likely teaching in "The Bundle of Sticks"? -Parents are wise. -Greed is dangerous. -Children are disobedient. -Strength is in unity. Which topics from the play Antigone are still important today?love and hateobedience and loyaltyjustice and moneywar and peace In what ways did Louis XIV support the arts Suppose you have 3 quizzes and want an average of 7 points. List at least five ways this average can be accomplished. keep in mind that each score can be no more than 10 points. Gina tracks the low temperatures for a city over six days. Identify the days colder than-1.75F. Monday Tuesday Wednesday Thursday Friday -2.5F -1.9F 0F -1.5F 0.5F value of the 6 in 36,282.563? Postreading strategies are used...before reading a text.when reading for specific information.when reading for general meaning.after reading a text. define atom and give an example How did incidents such as the Haymarket Affair impact labor unions? *A(There was a rise in labor union membership after.B(Labor unions were successful in getting better conditions after.C(Labor unions gained strength after.D(Public opinion turned against unions after I need help finding (x) step by step please:) I will reward you will awarding you as a brainliest if you can do this for me. so, please tell me WHY Bkugou is always so angry. Which expression is equivalent to (8.4x+2.9)+(3.7x+5)?Will give brainliest for the best answer & explanation!A 4.7x+7.9B 4.7x+7.9C 12.1x+7.9D 12.1x+7.9 Where does most of the population of Canada live?on its southern borderin its citiesin the mountainson its northern border its a multiple choice.