Find the solution to the system of equations.


−2x+2y=−4
3x+3y=−18

Answers

Answer 1
Set the equations equal to each other like this: -2x+2y=-4=3x+3y=18
Answer 2

Answer:

x = -2

y = -4

Explanation:

To find the y-intercept, substitute the x with 0. To find the x-intercept, substitute the y with 0. You can then graph the lines using these intercepts, and see that they intercept at (-2, -14).


Related Questions

9x-3=87 what is the anwser

Answers

Answer:

x=10

Step-by-step explanation:

9x-3=87

add 3 to both sides

9x=90

divide by 9 on both sides

x=10

Answer:

x=10

Step-by-step explanation:

9x-3=87

you add 3 to both sides

9x-3(+3)=87(+3)

which equals

9x=90

90/9= 10

answer:

x =10

I hope this helped!

BRAINLIEST for whoever gets this correct! Factor the expression below.
x^2-16x+64
A. (x-4)(x-16)
B. (x+4)(x+16)
C. (x+8)(x + 8)
D. (x-8)(x-8)​

Answers

Answer:

D. (x - 8) (x - 8)

Step-by-step explanation:

-16x must be split into two terms that can be added to get -16, and multiplied to get 64. The only two terms that can satisfy this, is -8.

(x - 8) (x - 8)

If you're unsure about whether it's correct, you can multiply the two together to see if you get your original expression, [tex]x^2-16x +64[/tex], as your answer.

Use the Pythagorean theorem and the square root property to solve the following problem . Express your answer in simplified radical form . Then find the decimal approximation to the nearest tenth . A rectangular park is 10 miles long and 5 miles wide . How long is a pedestrian route that runs diagonally across the park

Answers

Answer:

square root of 125 rounded to 11.2 milies to the nearest tenth

at the dade county fair, the williams family bought 6 burgers and 4 gatorades for $14.10. the jackson family bought 3 burgers and 4 gatorades for $9.15.find the price of a burger and the price of a gatorade sn: i need help like really fast

Answers

Answer:

The cost of a burger is $1.65 and the cost of a gatorade is $1.05.

Step-by-step explanation:

We can solve this question using a system of equations.

I am going to say that:

x is the price of a burger.

y is the price of a gatorade.

6 burgers and 4 gatorades for $14.10

This means that [tex]6x + 4y = 14.10[/tex]

3 burgers and 4 gatorades for $9.15.

This means that [tex]3x + 4y = 9.15[/tex]

Will write 4y as a function of x.

[tex]4y = 9.15 - 3x[/tex]

Replacing in the first equation:

[tex]6x + 4y = 14.10[/tex]

[tex]6x + 9.15 - 3x = 14.10[/tex]

[tex]3x = 4.95[/tex]

[tex]x = \frac{4.95}{3}[/tex]

[tex]x = 1.65[/tex]

And

[tex]4y = 9.15 - 3x[/tex]

[tex]4y = 9.15 - 3*1.65[/tex]

[tex]4y = 4.2[/tex]

[tex]y = \frac{4.2}{4}[/tex]

[tex]y = 1.05[/tex]

The cost of a burger is $1.65 and the cost of a gatorade is $1.05.

A student has $78 in his checking account. If the student spends $12 on lunch, which number could be combined with the amount left in the account to make zero?

Answers

Answer:

-66

Step-by-step explanation:

There will be $66 left after the $12 spent on lunch. 66 + -66 = 0

The number could be -66 combined with the amount left in the account to make zero.

What are Arithmetic operations?

Arithmetic operations can also be specified by the subtract, divide, and multiply built-in functions.

Student has $78 in his checking account

Student spends $12 on lunch

Let, the number is x

78 + x - 12 = 0

x = - 66

Learn more about Arithmetic operations here:

brainly.com/question/25834626

#SPJ2

How many factors does 12 have

Answers

Answer:

6 if you count 1 and 12

Step-by-step explanation:

1*12

6*2

3*4

(1,12,3,4,6,2)

(12,1) (1,12) (3,4) (4,3) (6,2) (2,6)
2 negatives make a positive**
(-12,-1) (-1,-12) (-3,-4) (-4,-3) (-6,-2) (-2,6)

Rewrite the decimal in the sentence below as a percentage.

The large tanks made up 0.66 of their sales last quarter.

Answers

Answer:

0.0066%

Step-by-step explanation:

What’s the volume of the pic

Answers

Answer:

100[tex]\pi[/tex] cubic cm

Step-by-step explanation:

The volume of a cone can be represented by the formula [tex]\frac{1}{3} \pi r^{2} h[/tex]. Since we know the radius is 5, all we need to find id the height. To do that, we can use the Pythagorean theorem, and see that the height is equal to 12. Plugging the numbers into the formula gives us:

[tex]V =\frac{1}{3} \pi (5^{2}) (12)[/tex]

[tex]V = 100\pi[/tex]

HOPE THIS HELPED! :)

Plz help me -Thanks

Answers

Answer:

She is wrong

Step-by-step explanation:

Bacause it can't feet according to the area given

The tiles are bigger

Answer:

[tex]\mathrm{Sum\:of\:Exterior\:Angle\:\ne \:Interior\:Angle}\:\\\\132^\circ\ne135^\circ[/tex]

Step-by-step explanation:

The exterior angle two figures on the left (hexagon and pentagon) sums up to  [tex]132^\circ[/tex]. The interior angle of figure on the right must be equal to this sum to fit in. The interior angle of an octagon is [tex]135^\circ[/tex].

So, it is not possible to fit the octagon in the combination of other two tiles.

Regards: Umer

Stacy uses a spinner with six equal sections numbered 2, 2, 3, 4, 5, and 6 to play a game. Stacy spins the pointer 120 times and records the results. The pointer lands 30 times on a section numbered 2, 19 times on 3, 25 times on 4, 29 times on 5, and 17 times on 6.



Write a probability model for this experiment, and use the probability model to predict how many times Stacy would spin a 6 if she spun 50 times. Give the probabilities as decimals, rounded to 2 decimal places

Answers

Answer:

Hence, Stacy will spin 6,  8.33 times out of her n = 50 attempts.

Step-by-step explanation:

Let us consider a success to get a 6. In this case, note that the probability of having a 6 in one spin is 1/6. We can consider the number of 6's in 50 spins to be a binomial random variable. Then, let X to be the number of trials we get a 6 out of 50 trials. Then, we have the following model.

We will estimate the number of times that she spins a 6 as the expected value of this random variable.

Recall that if we have X as a binomial random variable of n trials with a probability of success of p, then it's expected value is np.

Then , in this case, with n=50 and p=1/6 we expect to have  number of times of having a 6, which is 8.33.

Which equation has the solution x = 12?
(A
4x + 3 = 45
B
5x - 8= 68
2x - 5=29
3x +6=42

Answers

Answer:

D). last one

Step-by-step explanation:

a. 4x+3=45

4x=42

x=10.5 (incorrect)

b. 5x-8=68

5x=76

x=25.2 (incorrect)

c. 2x-5=29

2x=34

x=17 (incorrect)

d. 3x+6=42

3x=36

x=12

Mae and Luke are players on a game show. Mae has 80 points and Luke has -20 points. How many more points than Luke does
Mae have?

Answers

Mae has 60 more points
100 more points. -20+100: 80

How do you graph -1/4 X. Squared

Answers

Answer:

Points at (0,0) and (4,-1)

Step-by-step explanation:

Which line is parallel to y = 1/2x -5

Answers

Answer:

Any line with a slope of 1/2 would be parallel to that line.

Step-by-step explanation:

A line is parallel when the slopes are the same, causing the situation where the lines will never intercept. The line in the question has a slope of 1/2, so a parallel line must have that same slope.

What is the period of the sinusoidal function?

Answers

Answer:

4

Explanation:

If one period is just how far it takes for one wave to go up and come back down, then we can see one of the waves of the graph starts at 2.5 and ends at 6.5, making the period 4. Of course, there's a more proper formula to it, but this is the easier way my teacher taught me.
Happy studying!

the stained glass below shows bilateral symmetry. The two overlapping squares are congruent. What is the area of the window?

Answers

Answer:

  116.82 square inches

Step-by-step explanation:

The overall shape is that of a 10-inch square with four triangles attached. Each of those is an isosceles right triangle with leg lengths of 2.9 inches.

The area of the four triangles is ...

  total triangle area = 4(1/2)(2.9 in)(2.9 in) = 16.82 in²

The area of the 10-inch square is ...

  square area = (10 in)² = 100 in²

Then the total window area is ...

  window area = 16.82 in² +100 in²

  window area = 116.82 in²

The median and mode of this set of data (23,13,17,11,11)

Answers

Answer:

Mode: 11

Median: 13

Answer:

(23, 13, 17, 11, 11):

Median: 13

Arithmetic mean: 15

Geometric mean: 14.380735416546

Harmonic mean: 13.848764056076

Mode: 11

Standard deviation: 4.5607017003966

Variance: 20.8

Mean Absolute Deviation: 4

Range: 12

Interquartile range: 9

Lower quartile: 11

Upper quartile: 20

Quartile deviation: 4.5

Population size:5

What’s the correct answer for this?

Answers

Answer:

A number, such as 10 is a composite number because it is even.

The ten because it’s even

Write an equation in slope-intercept form for the line that passes through (4,-4) and parallel to 3 +4x=2y-9

Answers

Answer:

y=-2x-12

Step-by-step explanation:

Make the equation into slope intercept form

-2y=-4x-12

divide by -2

y=2x+6

since the line is parallel the slope is the same

y=2x+b

plug in (4,-4)

-4=8+b

b=-12

y=-2x-12

In ΔXYZ, the measure of ∠Z=90°, the measure of ∠X=57°, and XY = 8 feet. Find the length of YZ to the nearest tenth of a foot.

Answers

Answer:

21

Step-by-step explanation:

Answer:

6.7

Step-by-step explanation:

Sally wants to fill ten 8-inch tea glasses. How much tea does she need?
A) 80 ounces
B) 40 ounces
C) 80 cubic inches
D) Not enough information to answer

Answers

Answer

I believe C considering cubic mass

Answer:

D

Step-by-step explanation:

factor the polynomial-x^3-4x^2-5x

Answers

Answer:

(-x)(x^2 + 4x + 5)

Step-by-step explanation:

You have to factor out the -x from the rest of the expression.

A boat sailed 560 km in 8 hours. It took three hours to travel
the first 150 km. What was its average speed for the
remaining journey?
km/h​

Answers

Step-by-step explanation:

150 km in 3 hours

= 150 ÷ 3 = 50km/h

Remaining distance = 560 - 150 = 410

Remaining hours = 8 - 3 = 5

Then average speed = 410 ÷ 5 = 82 km / h

Solve C = AB + D for B

Answers

Answer:

B=(C-D)/A

Step-by-step explanation:

You first subtract D from both sides, and then you get C-D=AB. To isolate the variable of B, you divide both sides by A, resulting in B=(C-D)/A.

Answer:B=(C-D)/A

Step-by-step explanation:

C=AB+D

Subtract D from both sides

C-D=AB+D-D

C-D=AB

Divide both sides by A

(C-D)/A=AB/A

(C-D)/A=B

B=(C-D)/A

A company makes car batteries and claims 80% of its ABC batteries are good for 70 months or longer. Assume that this claim is true. Let p ˆ be the proportion in a sample of 100 such ABC batteries. What is the probability that this sample proportion is within 0.05 of the population proportion.

Answers

Answer:

78.88% probability that this sample proportion is within 0.05 of the population proportion

Step-by-step explanation:

We need to understand the normal probability distribution and the central limit theorem to solve this question.

Normal probability distribution

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For proportion p in a sample of size n, we have that [tex]\mu = p, s = \sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

In this question:

[tex]p = 0.8, n = 100[/tex]

So

[tex]\mu = 0.8, s = \sqrt{\frac{0.8*0.2}{100}} = 0.04[/tex]

What is the probability that this sample proportion is within 0.05 of the population proportion.

This is the pvalue of Z when X = 0.8 + 0.05 = 0.85 subtracted by the pvalue of Z when X = 0.8 - 0.05 = 0.75.

X = 0.85

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

By the Central Limit Theorem

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]Z = \frac{0.85 - 0.8}{0.04}[/tex]

[tex]Z = 1.25[/tex]

[tex]Z = 1.25[/tex] has a pvalue of 0.8944.

X = 0.75

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]Z = \frac{0.75 - 0.8}{0.04}[/tex]

[tex]Z = -1.25[/tex]

[tex]Z = -1.25[/tex] has a pvalue of 0.1056.

0.8944 - 0.1056 = 0.7888

78.88% probability that this sample proportion is within 0.05 of the population proportion

As a New Year's resolution, Jimmy has agreed to pay off his 4 credit cards and completely eliminate his credit card debt within the next 12 months. Listed below are the balances and annual percentage rates for Jimmy's credit cards. In order to pay his credit card debt off in the next 12 months, what will Jimmy's total minimum credit card payment be?
Credit Card. Current Balance. APR.
A. $563.00. 16%
B. $2,525.00 21%
C. $972.00. 19%
D. $389.00. 17%

a. $321.83
b. $361.45
c. $374.65
d. $411.25

Answers

Answer:

D) FOR BOTH

so 1. D $389.00 17%

2. is D  $411.25

Jimmy's Total Minimum Credit Card Payment must be equal to $71.54 if he is to clear his debt over the next 12 months.

What is Minimum Credit Card Payment (MCC)?

In order for a credit issuer to give an applicant a card, there is a minimum amount that must be deposited into and remain in such a bank account every month. This is what is called a minimum credit card payment.

To calculate Jimmy's MCCP across all cards, we must use the formula:

(APR * Days of Billing Cycle * balance)/365


So for A:

((563 * 30 * 16)/365)/100 = $7.40

For B:

((2,525 * 30 * 21)/365) / 100 = $43.52

For C:

((972 * 30 * 19)/365) / 100 = $15.18

For D:

((389 * 30 * 17)/365) / 100 = $5.44

To get Jimmy's total Minimum Credit Card Payment, we say:

7.40 + 43.52 + 15.18 + 5.44 = $ 71.54

See the link below for more about Minimum Credit Card Payment:

https://brainly.com/question/1245865

HELP im having trouble with this problem :( 3 /1 ​ (4⋅3)+2 / 3

Answers

Answer:

36.6666666667

Step-by-step explanation:

3(12)+2/3


An ice chest contains 4 cans of apple juice, 5 cans of grape juice, 8 cans of orange juice, and 6 cans of mango juice. Suppose that you reach into the container and
randomly select three cans in succession. Find the probability of selecting three cans of apple juice.







Please help I’m stressing and it’s my last question ‼️‼️

Answers

Answer:

(19/23)(18/22)(17/21) or 969/1771

Step-by-step explanation:

You add up the total number of cans, giving you 6+4+5+8 = 23 cans total. From there, you only have 4 cans of grape juice. That means 19 of these cans aren't grape, meaning you are checking the probability of choosing these three times in a row.

The probability of selecting the first can and it not being grape is 19/23. Then, when you select another can in succession, without replacing the cans, you now only have 22 cans left, meaning 18 also will not be grape, so it will be a 18/22 chance. Then, selecting your third can, 21 cans are left, and 17 of them are not grape since you have not yet chosen one, giving you 17/21. You multiply them together.

Hopefully I reduced the fraction properly (or even did this question properly)

What percent of 71 is 37

Answers

Answer: 52%

Step-by-step explanation:

37*100=3700/71=52%

please ASAP , giving BRAINLIEST if correct.

Answers

Answer:

B. -3(4x + 1) (x - 4)

Step-by-step explanation:

Out of the other answer choices, "B," is the only that factorizes correctly and ends up with the correct factorization (It already gives you the break-down of the trinomial).

However, if you're unsure about the answer, you can always take the end result: -3(4x + 1) (x - 4), and multiply it together to see if you can end up with the original trinomial: [tex]-12x^2 + 45x + 12[/tex]

Other Questions
Who did Washington choose to lead the State Department? What is the relationship between the degree of ionization and conductivity?A.The lower the degree of ionization, the stronger the conductivity.B.The higher the degree of ionization, the stronger the conductivity.C.Conductivity is directly proportional to the degree of ionization.D.Conductivity is inversely proportional to the degree of ionization. 50 POINTS AND I WILL AWARD BRAINLIEST TO FIRST ESSAY: can someone write me an argumentative essay on "Breaking Quarantine Should be a Crime" pls so When using manual flash mode on your camera, how should you set the ISO speed on the flash?A. slower than the camera's ISO settingB. faster than the camera's ISO settingC. matching the cameras ISO speed settingD. higher than the camera's ISO setting 4~ Please help. What is mLKE? Need help please no dumb answers I gotta turn it in in five min help a girl out please Martin dennis brought a wide screen television for $1720. He made a down payment of 15% and paid the balance over 18 months. The fiance charge was 4% of the amount financed. Find the down payment and the installment price of the televison and the monthly payment How did Ferdinand and Isabella treatthose of Muslim and Jewish faith? i need these two questions Microclimates can be affected by: elevation, large cities, density of vegetation or all of these - pls :( What is the area of this parallelogram?6 cm2 cm Mr. warner is remodeling the square garden in his backyard he expands the Garden by 10 feet along its width the area of the news garden in square feet can be found by expression given below where X is the side length in feet of the Original Square, Garden what does the term 10 X represent Discussion Questions What project management tasks should Kelvin perform before his next meeting? What change management tasks should Kelvin perform before his next meeting, and how do these tasks fit within the project management process? Had you been in Kelvins place, what would you have done differently to prepare for this meeting? Label the part of speech of each underlined word. good and services are? Four score and seven years ago our fathers brought forth on this continent a new nation, conceived in Liberty, and dedicated to the proposition that all men are created equal.Which quotation correctly uses an ellipsis to shorten Lincolns words? How can a mutation that causes a change in the structure or function of a protein be beneficial to an organism? Which of the phrases below is the general topic?O A. Sunny and warmB. Weather forecastsO C. Mostly cloudyO D. Thunder and lightning storms What is the area, in square units, of a rectangle with a length of 3/7 and a width of 2/9? Please help me with this.