Mathematics College

3x + y = 15 and y = 2x
The solution, given in (x,y) form is

Answers

Answer 1

Answer: (3, 6)

Step-by-step explanation:

3x + y = 15

y = 2x

Using substitution:

3x + 2x = 15

5x = 15

x = 15/5

x = 3

y = 2x

y = 2 * 3

y = 6

x = 3

y = 6

= (3, 6)

Related Questions

Please help me!!!!!!!!!!!

Answers

Answer:

0.05

Step-by-step explanation:

Let blank be 'x'

1.456=1+0.4+x+0.006

1.456=1.406+x

x=0.05

HELP WILL GIVE BRIANLIEST
Which of the following best demonstrates the Distributive Property?


3 ( 2+ 4) = 4 ( 3+2)

4 ( 5 + 2) = 10 + 2

4 (5 + 6) = 4 * 11

3 + 6 + 2 = 2 + 3 + 6

Answers

Answer:

The 2nd equation

Using a scale where 3 inches = 5 feet. If a room measures 20 feet (Width) by 22.5 feet (length), what are the dimensions of the room in inches?

A 12 inches (width) by 13 inches (length)
B 12.5 inches (width) by 13 inches (length)
C 12 inches (width) by 13.5 inches (length)
D 12.5 Inches (width) by 13.5 inches (length)​

Answers

Answer:

wnna call me and lift the lorax

Step-by-step explanation:

Answer:

12 inches by 13.5 inches

Step-by-step explanation:

3 inches= 5 feet

0.6 inch = 1 feet

20 feet=12 inches

22.5 feet=13.5 inches

please give me brainiest!!<3

4(3+c)+c=c+4 ???????????????????????????
​

Answers

Answer: = - 2

Step-by-step explanation:

Answer:

28

Step-by-step explanation:

4(3+4) so you do multiplication because there is a parenthesis and you do the 4 multiply the number that is inside the parenthesis so 4x3 + 4x4 you do that and then multiply it then we will have 12+16 and we add that we get 28 and that’s the answer I hope it helps you

n+0.5(n-1)=7 what is the answer

Answers

Answer:

n= 5

Step-by-step explanation:

n + 0.5(n-1) = 7

n + 0.5n - 0.5 = 7

1.5n = 7 + 0.5

1.5 n = 7.5

n = 7.5 × 10/1.5 × 10

n = 75/15

n = 5 ( Answer)

how much should dave charge for donuts?

Answers

Answer:

1 million bucks UvU

Step-by-step explanation:

Naw I'm just playin $7.49 if it's a good quality donut.

If it not a good quality donut then prolly $4.50

3. Baskin Robbins has a new 3-gallon container of
chocolate chip ice cream. If Baskin Robbins sold
gallon on Monday, how much of the chocolate chip
Ice cream was left at the end of the day, in gallons?
muy
Expression
3 Gallons

Answers

2 gallons were left at the end of the day

Olivia and Cody both have spinners with the color purple. Olivia determines that the probability of spinning purple on her spinner is 4 out of 12. Cody determines that the probability of spinning purple on his spinner is 3 out of 10. Which of the following statements is true?​

Answers

Olivia will have a 25% chance Cody will have a 30% chance

So the answer would be B

The true statements:

A) Olivia's spinner has the highest probability of spinning purple.

What is the probability?

The Probability in mathematics is the possibility of an event in time. In simple words, how many times that incident is happening in any given time interval.

Given:

Olivia and Cody both have spinners with the color purple.

Olivia determines that the probability of spinning purple on her spinner is 4 out of 12.

That means, 4/12 = 0.33

Cody determines that the probability of spinning purple on his spinner is 3 out of 10.

That means, 4/10 = 0.3

0.33 > 0.3

Therefore, Olivia's spinner has the highest probability of spinning purple.

To learn more about the probability;

brainly.com/question/11234923

#SPJ6

(10 points) Suppose you are rolling a fair die 600 times independently. Let X count the number of sixes that appear. (a) What type of random variable is X

Answers

Answer:

let me think

Step-by-step explanation:

i want free points

Select all the correct answers. What are the solutions to this equation? 2x2 = -10x + 12​

Answers

Answer:

x=1 and x=-6

Step-by-step explanation:

3(3) + 3(2/3)......................

Answers

3 (3) + 3 (2/3) = 11

i need help pls help me

Answers

Answer:

yes

Step-by-step explanation:

Answer:

18

Step-by-step explanation:

you have to multiply 2/3 by 27 km

Which pair of expressions is equivalent? A. 4x – 12 and 3(x – 3) e B. 2x B. 2(x + 3) + 1 and 2x + 6 C. 11x – 4 + 2x and 13x - 4 D. X-5 - 10x and -11% - 5​

Answers

Answer: C

Explanation: 11x-4+2x is equal to 13x-4

Pls I need help with 2 I’m begging I been stuck on it for a while pls have a good day pls I need help

Answers

Answer:

F

Step-by-step explanation:

You add 4.5 pages for every 1 minute, this is constant.

Which of these expressions equal 15 when x=1/2 and y=3? Circle all that apply. Please help with this my teacher need me to work out xy+3 1/2+20x Btw guys 3 1/2 are mixed numbers if your wondering

Answers

Answer:

15

Step-by-step explanation:

First you would replace the x and y's with 1/2 and 3.

So it would look like: (1/2) (3) + 3 1/2 + 20 (1/2)

Next, you go by PEMDAS (parenthesis, exponents, multiplications, division, addition, subtraction)

So you would first multiply and the parenthesis that I added mean multiplication.

1.5 + 3.5 + 10

So then all that is left to do is add because I multiplied everything out.

So it is 5 + 10 which is 15

How can I tell that a graph is a function or not?

Answers

Answer:

You can use the vertical line test, which means anywhere you put it on the graph it should only pass through the line once.

Step-by-step explanation:

This insures that the graph does not have two of the same x values. However if it has two points that have the same x values that means it will not be a function.

will give brainlest
Solve the following equation.

-4.7=9/3.2

Answers

Answer:

4.7 (does not =) 2.8125

Step-by-step explanation:

Divide 9/3.2

STOP RIGHT THERE. Please help me.

Answers

Answer:

the answer is B

Step-by-step explanation:

Well we can get rid of A and D because we're not adding money, we're subtracting (thats what a sale is)

So we're left with B and C.

To find what 17% of 3 is, we multiply 3 x 0.17, which totals to 0.51. It can't be C because you find 51% of 3 which is not what we're looking for, so it is B.

What is the volume of Box 3?

Answers

Answer:A

Step-by-step explanation: U need to show us the box next time though.Luckly i had the same test.

Answer:

the answer is B had the same test

Step-by-step explanation:

mang pedro has 20 kilogram of rice.he will repack it in 1/2 kilograms per bag.how many bags will he need?​

Answers

Answer:

40

Step-by-step explanation:

20 x 2 because you will need 2 bags per kg

can someone please help me with this by showing work? this is very hard for me so i asked here even though my questions never get responses sometimes

Answers

Answer is 4X^3 Y^5
Steps
4^2 = 16
X^6
Y^10

Answer and Step-by-step explanation:

The square root of 16 times x to the power of 6 times y to the power of 10 is the same as:

[tex]\sqrt{16x^{6} y^{10} } = \sqrt{16} * \sqrt{x^{6} } * \sqrt{y^{10} }[/tex]

The square root of 16 is 4.

The square root of x to the power of 6 is x to the power of 3.

The square root of y to the power of 10 is x to the power of 5.

So, the answer is:

[tex]4x^{3} y^{5}[/tex]

Hope this helps!

#teamtrees #WAP (Water And Plant)

Is it true or false that a temperature of -3F is colder than a temperature of -9

Is it true or false that A elevation of -42ft is greater than an elevation of -54 ft

Is it true or false that a profit of 28$ is more than a profit of $18

Answers

Answer:

true

Step-by-step explanation:

udh xxx yxdydudhxhxhddhdhdhududududdu

could someone help me? thank you <3

Answers

Answer:

<

Step-by-step explanation:

because -4 is greater than -7


The number of pounds that can be safely loaded onto an elevator, X, can be represented by
the inequality x < 1,200. Which number line correctly represents this inequality?

Answers

Answer:

the third one

Step-by-step explanation:

The inequality says X is less than 1200, this means the arrow needs to be pointing to the left. Because X cannot equal 1200, the circle on 1200 should not be filled in. It is only filled in if it is included.

Answer:third one

Step-by-step explanation:

What is the equation in slope-intercept form for graph shown?

Answers

the answer is D. y = -2x + 1

Describe the end behavior of a ninth-degree polynomial with a negative leading coefficient

Answers

Given:

The degree of polynomial = 9

Leading coefficient is negative.

To find:

The end behavior of the polynomial.

Solution:

Let the polynomial be P(x).

We have,

Degree of polynomial = 9, which is odd.

Leading coefficient is negative.

If the degree of a polynomial is odd and leading coefficient is negative, then

[tex]P(x)\to \infty\text{ as }x\to -\infty[/tex]

[tex]P(x)\to -\infty\text{ as }x\to \infty[/tex]

Therefore, the end behavior of the given polynomial is [tex]P(x)\to \infty\text{ as }x\to -\infty,P(x)\to -\infty\text{ as }x\to \infty[/tex].

HELPPPPPPPP IM STUCK

Answers

Answer:

10 students

Step-by-step explanation:

how how do you solve this please explain​

Answers

Answer:

1. have se x

Step-by-step explanation:

Answer:

x = 36

Step-by-step explanation:

(3x + 10) + 62 = 180

3x = 180 - 62 - 10 = 108

x = 36

These are the weekly wages paid to staff in a hotel.

£245
£140
£525
£163
£195
£174
£140

What is the median wage?

Answers

If I’m not mistaken 174 is your median

What is 10 divided by 5/8

Answers

Answer:

its 16 lol

Step-by-step explanation:

I just did the math

16

16 is the answer
hope i helped. have a good day
Other Questions
James and Noel sat on the steps of their new house. It was going to be a hot day, but the boys preferred sitting outside to unpacking more boxes inside. Their mom was unpacking kitchen stuff, and the boys had grown tired of hearing her exclaim every time she unwrapped another of the teapots she hadn't seen in months. "You'd think she'd have enough teapots by now," said James. "Yeah," said Noel, "I don't get that excited about my Godzilla collection and that is way more interesting than any teapot." "And I'm sorry," said James, "but I know way too much about teapots for a boy my age." James then started listing all the things he knew about teapots. "There's the spout and the pouring angle," he began. But Noel had already tuned James out. The heat was rising and as tired as he was of his mother's teapots, he was more tired of James' complaining. Besides, there was a raggedy old dog down the street. Noel could tell, even from far away, this was a dog that belonged to no one. Its coat was matted. It had no collar. All he could see of the dog's face was its nose sticking out. Its coat was all brown, but a dirty, grayish brown, not the deep dark warm brown that made you feel safe. "And there's that teapot with the flowers. The brown one with the little dots all in a row," James continued on his rant, now listing all the teapots he had unwrapped for Mom. Noel continued ignoring James and watched the dog. It was moving slowly in their general direction. It stopped at various spots along the curb to smell things. Sometimes the smelling took a very long time. Every now and then it would sit down to scratch behind its ear. Noel wondered if it was looking for something to eat. James jabbered on and Noel began to wonder how a dog came to be in such a sad condition as this one. Did no one ever want it? Even as a puppy, was this fellow not cute enough to find a good family? Had it always been this ugly? Hadn't anyone ever been kind to it? The dog was across the street now, one house over. It seemed to be particularly attracted to mailboxes and the plants around them. To Noel's mind, it appeared that the dog was greeting each family on the street. Noel watched the dog cross the street heading in their direction. He hadn't noticed it before, but the dog's head seemed rather large. It swung back and forth in front of its body, much like the bears Noel had seen at the zoo and on television. Noel could not see any eyes through all the matted hair. He could see gnats and flies hovering over the poor thing, waiting for it to sit down again. It lumbered toward them. Noel noticed that James had stopped talking. He looked over at his brother. Staring at the dog, James seemed to be a bit shocked or surprised, maybe even stunned. "What is that?" James whispered. Instead of sniffing their mailbox and moving on like before, the dog started up the sidewalk toward the steps where they were sitting. Noel could hear the flies buzzing and see not just a few gnats, but a whole swarm around the dog. Bits of leaves and twigs hung in its hair. The dog continued toward them. Was it going to stop, wondered Noel. Should I get up and get in the house? But then, just when Noel felt a twinge of panic, the dog sat down, wagged its tail, and smiled. Noel had never seen anything like it before. It was as if the dog, flies and all, were posing for a photographer. It is going to be an interesting summer, thought Noel.Read these lines from the text:Noel could not see any eyes through all the matted hair. He could see gnats and flies hovering over the poor thing, waiting for it to sit down again.These lines from the text tell us that (4 points) athe dog is probably a stray bthe dog has never had friends cthe dog must be dangerous dthe dog does not like people Who wrote what "with which they seek the overthrow of all Christendom " The period in history between A.D. 395 and A.D. 1500 is known as the:CrusadesMiddle AgesIndustrial AgeRenaissance Your high school freshman class consists of 760 students. In recent years, only 4 out of 7 students actually graduated in four years. Approximately how many of your classmates are expected to graduate in four years?a.190 studentsb.760 studentsc.434 studentsd.1330 students how many elements does lythium have decide whether each function is linear or nonlinear from its graph A cell membrane is called _____________ because it allows only certain substances to enter and leave the cell *a. exocytosisb. endocytosisc. semipermeabled. diffusion 6) Find the quotient What does the axon of a neuron do?Aprotect the dendritesBcarry signals away from the somaCinsulate the myelin sheathDprocess the information it receives (I need to turn this in tomorrow, please help) Can anyone help me please!? Evaluate the expression.131 +-5 The following graph shows the solution to whichinequality?ANSWER BOTH PLEASE QUICK Unscramble the letters:c z o g e h n l e h nCs: 1Zs: 1Os: 1Hs: 2Es: 2Ls: 1Gs: 1Ns: 2 50 points!! Look at both pics attached! I need this done ASAP! Put random answers and I will report you HELP !!!!!!! MAHH HELP PLEASE !!!! can someone help me out :P How might a person trained to be a prosecutor become an Assistant US Attorney (AUSA)?intensive interviews, pass all related interview tests, and bring several years experiencework as an extern in the US Attorneys officework in the DA office for at least 15 yearsgather evidence of volunteer experience, summer jobs, extra academic work A paper company produces 4,050 notebooks in 5 days. How many notebooks can it produce in 13 days? Which statement describes how the sun gets its light?A. It bends light.B. It reflects light.C. It refracts light.D. It makes its own light.