Solve the system by substitution.
{-2.5x+y=13.5
12.25x - y=-12.25

(-5.1)

(-1,5)

(1.-5)

(5.-1)

Answers

Answer 1

Answer:

(-5,1)

Step-by-step explanation:

   

y= 13.5+2.5x

-13.5 -13.5

-13.5= 2.5x

x= -5.4


Related Questions

Emma buys a house for £300,000. She sells the house for £315,000. Calculate the percentage profit Emma makes

Answers

She buys it for £300,000 and sell it for £315,000 -> she profits £15,000.

So, the percentage profit Emma makes is : 15,000 : 300,000 = 0.05 -> 5%.

Answer:

5%

Step-by-step explanation:

300000 = 100%

1% = 300000 ÷ 100 = 3000

She made 15000
15000 ÷ 3000 = 5%

Review Question: 5) f(x) = 2xsquared + 7x - 15 find f(-8)​

Answers

Answer:

f(-8) = 57

Step-by-step explanation:

When x = - 8

f(-8) = 2 x (-8)² + 7 x (-8) - 15

f(-8) = 2 x 64 - 56 - 15

f(-8) = 128 - 56 - 15

f(-8) = 128 - 71

f(-8) = 57

[tex]\sf f(x) = 2x^2 + 7x - 1[/tex]

Just substitute the value of x as (-8) .

[tex]\sf f(-8) = 2(-8)^2 + 7(-8) - 15[/tex]

[tex]\sf f(-8) = 2(64) - 7(8) - 15[/tex]

[tex]\sf f(-8) = 128 - 56 - 15[/tex]

[tex]\sf f(-8) = 128 - 71[/tex]

[tex]\sf f(-8) = 57[/tex]

Help would be appreciated, thanks

Answers

Answer:

-8

Step-by-step explanation:

the pattern is times 4

AM I PLAYING 2048??????

Answer:

-8

Step-by-step explanation:

This is a geometric sequence. Each term is obtained by multiplying 4 with the previous term.

common ratio = -128 ÷ (-32) = 4

-2 *4 = -8

8) Choose the inequality that represents the statement.

He is older than 100.

Answers

The answer is the third one

The expression of the inequality that states his age is x > 100.

What is inequality?

Inequality compares two non-equal quantities on both sides of the inequality sign. Inequalities are of four types they are:- Less than, Greater than, Less than or equal to, and Greater than or equal to. Their symbols are as follows:- <, >, ≤, ≥.

Given in the statement he is older than 100 which means his age is strictly more than 100.

Assuming his age to be x years.

∴ The inequality which represents this scenario is,

x > 100.

learn more about inequalities here :

https://brainly.com/question/11612965

#SPJ2

What is the solution of (4 x minus 16) Superscript one-half Baseline = 36? x = 5 x = 13 x = 20 x = 328.

Answers

The solution of the given equation [tex](4x-16)^{1/2} = 36[/tex] is 328.

The given equation is:

[tex](4x-16)^{1/2} = 36[/tex]

What is solution of an equation?

The solution of an equation is to find out the numeric value of the variable such that Left-hand side and Right-hand side becomes equal.

Squaring both sides of the given equation.

[tex][(4x-16)^{1/2} ]^2= (36)^2[/tex]

[tex]4x-16 = 36^{2}[/tex]

[tex]4x -16 =1296[/tex]

[tex]4x =1296+16[/tex]

[tex]4x = 1312[/tex]

x= 328

Therefore, The solution of the given equation [tex](4x-16)^{1/2} = 36[/tex] is 328.

To get more about equations visit:

https://brainly.com/question/9423572

Explain how you would graph the line containing a slope of -1/5 that goes through the point (1, -4).

Answers

Answer:

I would plot the point (1,–4) and then use the slope to move down 1 and right 5 to find another point on the line. Draw the line through the two points.

Step-by-step explanation:

i saw the answer

Answer:

I would plot the point (1,–4) and then use the slope to move down 1 and right 5 to find another point on the line. Draw the line through the two points.

Ken sees cars on a road. He sees 120 cars pass in 3 minutes. How many cars pass per minute?

Answers

Answer:

Ken would see 40 cars pass each minute.

Step-by-step explanation:

40 x 3 = 120

Have a great rest of your day
#TheWizzer

Answer:  40 cars pass per minute.

Step-by-step explanation:

[tex]\frac{120cars}{3minutes\\}[/tex]  = [tex]\frac{?cars}{1minutes}[/tex]

        3? = 120  [cross multiply]

          ? = 40    [divided 3 from both side]

Therefore, 40 cars passes per minute.

 

Give me a full note on oxidation number.​

Answers

Answer:

oxidation number, also called oxidation state, the total number of electrons that an atom either gains or loses in order to form a chemical bond with another atom.Step-by-step explanation:

need help with geometry problem

Answers

Answer:

d. KL LM MK

Step-by-step explanation:

side opposite to the smallest angle is the shortest side and the side opposite to the largest angle is the longest side.

57 + 64 = 121

180 - 121 = 59

angle K is 59 degrees

onlinemath4allcom

To make a big batch of cookies for her father, Annmarie needs 1 1 4 pounds of chocolate chips, 3 4 pounds of walnuts, and 12 ounces of raisins. How many ounces of these three ingredients does she need in all?.

Answers

She will need  68 ounces in total for all three ingredients.

What will be the total ounces for all three ingredients?

It is given that

For chocolate chips, she has  =  [tex]\dfrac{11}{4}[/tex] pounds

For walnuts, she has = [tex]\dfrac{3}{4}[/tex] pounds

For raisins, she has=  12 ounces

We know that,

[tex]\rm 1 \ pound = 16 \ ounces[/tex]

[tex]\rm For \ chocolate \ chips, she\ has = \dfrac{11}{4} \times 16 }=44 \ ounces[/tex]

[tex]\rm For \ walnuts,\ she\ has = \dfrac{3}{4} \times 16 }=12\ ounces[/tex]

[tex]\rm For\ raisins, she \ has= 12\ ounces[/tex]

so the total number of ounces she has will be the sum of all

[tex]=44+12+12 =68\ ounces[/tex]

Thus she will need  68 ounces in total for all three ingredients.

To know more about unit conversion follow

https://brainly.com/question/13016491

heyy. can anyone help me ! please and thank you

Answers

Answer:

576 feet

Step-by-step explanation:

I'm going directly off the graph but it looks like the y-coordinate of the vertex is 576, which would make 576 feet the maximum height. Hope that helps :)

k(t) = 13t-2k(t)=13t−2k, left parenthesis, t, right parenthesis, equals, 13, t, minus, 2
k(3)=k(3)=k, left parenthesis, 3, right parenthesis, equals

Answers

Answer:

Step-by-step explanation:

right parenthesis, equals, 13, t, minus, 2 so think about it when you divide

k(t) = 13t-2k(t)=13t−2k then your answer would maybe be k=134

Answer:

The answer is 39 -2k

Step-by-step explanation:

help pleaseeee thank youuu​

Answers

Hi :)

Your answer is .25

Lem.me explain

25x4 is 100

100 over 400 simplified is...

1/4

Here is an example

Jack had a Glass of milk 1/4 of the milk was left. Jack wanted to know how much more he would need to fill his cup

Jack would need .25 more to fill his glass

Hope this helps!

Brainliest!

Answer:

0.25

Step-by-step explanation:

To Turn 1/4 into decimal form:

Do..

1 ÷ 4 = 0.25

Check Answer:

0.25 x 4 = 1

Hence, 1/4 into decimal form is 0.25

~Learn with lenvy~

exercise have benenfit when?​

Answers

Answer:

when u have a proper balance of diet also

Answer:

Exercise is a benefit when you are not eating very healthy and you may think your fat. It's good to exercise because then you can get more fit and fell better about your body and what you eat.

Step-by-step explanation:

Helppp!!!!! URGENTTFFFFjajshshdhd

Answers

Answer:

114 cm²

Step-by-step explanation:

Mah teacher help me do this lol

Answer:

A1=4m*12m=48m^2

A2=6m*3m=18m^2

A3=A1

therefore A1+A2+A3=114m^2

STOP ANSWERKNG WITH LINKS. PLEASE SOMEONE ANSWER THIS QUESTION ASAP , IVE SPENT ALL MY POINTS

Martin incorrectly claims that there are only parallel line segments found in the blinds. Give an example of perpendicular line segments found in the blinds​

Answers

Answer: The stick that opens the blinds and, the string that pulls open the blinds.

Jane is helping the librarian stack books on some new shelves. She is to stack 116 books on 16 shelves. The librarian told her to put the same number of books on each of the 16 shelves. Describe a different way that Jane can use to determine the number of books she should put on each shelf.

Answers

Answer: The number of books she should put on each shelf = 7

Step-by-step explanation:

Given: Total books = 116

Total shelves = 16

To determine : The number of books she should put on each shelf, we first divides the total number of books by the total shelf.

[tex]116\div 16=7\dfrac14[/tex]

So she can put 7 books in each shelf such that (7x16=) 112 books got placed and (116-112=)4 books left.

Hence, The number of books she should put on each shelf = 7.

if the volume of the cube is 125 CM find its length find its total surface area .
i need hurry
step by step
process by process
who will give correct answer i make him / her as a brainlists ​

Answers

Answer:

150cm^2

Step-by-step explanation:

Let the side of a cube = a cm

Volume of the cube = a³ = 125

Or, a³ = 5³

Or, a = 5 cm

Surface area of the cube = 6a²

Or, Surface area of the cube = 6×5×5

Or, Surface area of the cube = 150 cm²

Pls help will mark as brainliest and give points

Answers

Answer:

Y=4x+2

Step-by-step explanation:

The most basic way to put this is dont count the starting Y when plotting, you can just count the Rise over Run meaning just look how much the Y moves up as the X moves 1 that will just be the first part and then just put +/- at the starting Y variable

A rectangular prism has length width w, and a height that is twice the length Which expression represents the volume of the prism
A 3lw
B 2l^ 2w
C 2l(l÷w)
D l^3w ​

Answers

Answer with step-by-step explanation:

Let's start by listing out the equation; w × l × 2l = v. If we simplify this equation, we would get w × [tex]2l^2[/tex] = v. This would mean the correct choice is B, because it shows the key equation, just written differently.

Hope this helped! (brainliest please)

PLS HELP ASAP THANKS ILL GIVE BRAINLKEST PLS THANKS PLS ASAP

Answers

Answer:

(-7, 8)

step-by-step explanation:

original coordinates of B: (-9, -8)

if translated two units horizontally, there will be change in x axis

new coordinates: (-9+2, -8) → (-7,-8)

if reflected over x-axis, use the formula: (x,y) → (x, -y)

new coordinates: (-7, -(-8)) → (-7, 8)

What is the slope from the table?!?!

Answers

Answer:

2

Step-by-step explanation:

The answer is 2 to your number

HELP WILL GIVE CROWN

Answers

Answer:

When dividing with same base and different exponents, you need to subtract the exponents.

[tex]7^8/7^4\\= 7^8^-^4\\= 7^4[/tex]

Answer: C

Step-by-step explanation: 7^8= 5764801. And 7^4 = 2401. 5764801/2401 = 7^4

How do I find the slope point equation of this when I only have (4,-2) and no slope?

Answers

Answer:

B

Step-by-step explanation:

4 (3r+4) = -8 (2r+5)

Answers

Answer:

-2

Step-by-step explanation:

Open the brackets on both sides

12r + 16 = -16r - 40

collect like terms

12r + 16r = -40 - 16

28r = -56

r = -56/28

r = -2


A draw is being held to win a prize.
Bruce buys 17 tickets.
A total of 350 tickets are in the draw.
Find the probability that Bruce does not win the prize.

Answers

Answer:

I believe the answer is 95.15 %

Step-by-step explanation:

pls help me with this

Answers

Answer:

8125, im pretty sure this is right

Step-by-step explanation:

What is the median of this Box and Whisker plot? A) 40 B) 48.5 C) 37 D) 53.5

Answers

Answer:

40

Step-by-step explanation:

The middle dot of the box is the median.

Answer:

the median is 44.75

Step-by-step explanation:

first i add up all the numbers

40+37+48.5+53.5=175

then i divide them by how 4

179 divided by 4=44.75

Simplify the equation.
A=1/2 [(x+10)+(5x-2)](x^2)=1/2[6x+8](x^2)

Answers

Answer:

3x^2+4x^2

Step-by-step explanation:

Which of the following describes a situation in which the total distance a tennis player travels is 0 meter from his starting point? (5 points)

Question 2 options:

1)

The player runs 9 meters forward and then runs 0 meters in the opposite direction.

2)

The player runs 5 meters forward and then runs 6 meters in the opposite direction.

3)

The player runs 7 meters forward and then runs 7 meters in the opposite direction.

4)

The player runs 6 meters forward and then runs 5 meters in the opposite direction.
Need to know asap thank you god bless

Answers

Answer:

1) +9

2) -6

3) 0

4) 1

Step-by-step explanation:

moving forward is a positive, moving in the opposite direction is a negative. So if you move 9 meters forward (9) and 0 in the opposite direction, and equation would look like this: 9-0

I hope this helps :)

Answer:

The answer is C.

Step-by-step explanation:

Say you’re at 0 on the number line. You go forward 7 steps and backwards 7 steps. You arrive at 0. Therefore your answer would be C.

Other Questions
What is the area of this trapezoid?Enter your answer in the box. __ft Despite how well you might take care of your computer, problems can always arise. When troubleshooting problems you encounter, at what point should you engage a professional for assistance I need help please !!!!! HELP ASAP ly!! How would I solve this?? PLEASE HELP!! THIS IS DUE TODAY!! 100 POINTS!!The Declaration of Sentiments In 1833, The American Antislavery Society adopted its Declaration of Sentiments. The Declaration was written by William Lloyd Garrison, an American abolitionist. Read the Declaration of Sentiments. For this assignment, you will write your own Declaration of Sentiments for a current or past human rights issue. Some examples of human rights issues that you may choose include (but arent limited to): Poverty in the United states and abroad Womens rights around the world Refugee and migrant rights Childrens rights and the right to education Censorship and free speech Crimes against humanity and war crimes LGBT equality and human rights Task: Research the Declarations of Sentiments, including the Declaration of Independence Write a one-page Declaration that includes: An opening paragraph A list of sentiments (grievances) Closing remarks A list of signers A citation page What is the median of this data set?{11, 6, 11, 9, 7, 2, 5}Enter your answer in the box You have $35.72 to spend for a sweatshirt. The sales tax is 7% what is your price limit for the sweatshirt? Cole hauls heavy equipment from North Dakota to Winnipeg. After crossing into Canada, he sees a sign that says the weight limit for the road is 7 metric tons. He must decide whether to drive on this road or to take a detour. How many U.S. standard tons are allowed on the road? I need help with B find the roots According to the big five, a person who can be described as independent, imaginative, and flexible most likely scored high in __________. a. openness to experience b. neuroticism c. conscientiousness d. extraversion please select the best answer from the choices provided a b c d Cual es el analisis de la cancion Polvo de Mariposas de Vanesa Martin? One athlete runs around a track in 65 seconds.The second athlete takes 70 seconds. If theyboth start togetherwhen will the first lap the second? Explain how Thomas Jefferson helped America evolve into the nation it is today.NEED ASAP Which statement best explains the Indian Removal Act? O A. It separated the Indians from the black slaves. B. It brought people into the middle of the United States O C. It gave ownership of native lands to the Indians. O D. It was used to force Indians from their homes. can someone give me formulas to calculate area Actividad 1 Write the indirect object for each noun below. 1. a mi 2. a ti 3. a Juan 6. para ti 7. para Rosa y Ana 8. para 9. para nosotros 10. para Felipe 4. a nosotros 5. a ellos which number line expression show how to find distance from 2 to -5? Hi, what extra things do you guys recommend to learn Spanish? o.o The present continuous tense What is going on? 1. I....... televisin (to watch) 2. Jack...... His homework (to do) 3. Andrea and Rita...... Fun (to have) 4. Richard....... To school (to walk) 5. Paul...... here(to come) 6. the hairdresser...... Therese's hair (to cut) 7. The shopkeeper..... A parcel (to tie) 8. I...... A letrero to My friend (to write) 9. The bus.... Too long (to Take) 10. We..... In this house (to live) 11. It...... Hot in here (to get) 12. Mark and Anna... The rope (to skip) 13. The dog ..... Fast (to run) 14. I..... On a comfortable chair (to sit) 15. We..... Cold (to feel) 16. They..... To the radio (to listen) 17. The driver.... The car (to push) 18. Max.... Goodbye (to Wave) Sketch a graph of xy=4