Solve the following system by substitution. 7x + 2y = 16 –21x – 6y = 24 What is the solution ?

Answers

Answer 1

Answer:

no solution

Step-by-step explanation:

x=(16-2y)/7

-21*(16-2y)/7-6y=24

-3(16-2y)-6y

-48+6y-6y=24

-48=24

you can't solve for the variables

Answer 2

There is no solution for given system of equations.

System of equations :

The given equations are,

                      [tex]7x+2y=16\\\\x=\frac{16-2y}{7}[/tex]

Another equation is, [tex]-21x-6y=24[/tex]

Substitute value of x in above equation.

               [tex]-21(\frac{16-2y}{7} )-6y=24\\\\-48+6y-6y=24\\\\-48\neq 24[/tex]

Thus, there is no solution for given system of equations.

Learn more about the system of equations here:

https://brainly.com/question/13729904


Related Questions

if y= 6 when x= 24, find the value of x when y= 7

Answers

Answer:

x=28

Step-by-step explanation:

the y to x ratio is 1:4 or in other words all you need to do is multiply the y by 4 to get your new x value

-Hope this helps

Answer:

x=28 Hope this helps

                         

Factor completely x2 − 7x + 18. (1 point)
Prime
(x − 9)(x − 2)
(x − 9)(x + 2)
(x + 9)(x + 2)

Answers

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

[tex] {x}^{2} - 7x + 18 = (x - 9)(x + 2) \\ [/tex]

Thus the correct answer is the second one.

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

The price at an item has been reduced by $3.49. The original price was $66.75. What is the price now?

Answers

Answer:

i need help

Step-by-step explanation:

waaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

$66.75-$3.49=$63.76 is the answer u jus have to subtract

what is the total area of the three triangle ?​

Answers

Answer b. 13 square units

Simplify:

3c-5d+5d

Pls

Answers

Answer:

3 c

Step-by-step explanation:

Simplify the following:

5 d - 5 d + 3 c

Hint: | Combine like terms in 5 d - 5 d + 3 c.

5 d - 5 d = 0:

Answer: 3 c

Answer:

3c-10d is the supposed awnser I think

in a complete sentence describe how much smaller the 3 in 743,857 is than the 3 in 735,957

Answers

Answer:

The 3 in 743,857 is 27,000 less than the 3 in 735,957.

Step-by-step explanation:

in 743,857 the 3 is 3,000

in 735,957 the 3 is 30,000

30,000 - 3,000 = 27,000

The sum of 4 plus 7 equals 44

Answers

Answer:

Hello!!! Princess Sakura here ^^

Step-by-step explanation:

First you have to translate it into an understandable equation like this...

[tex]4+7=44[/tex]

You don't have to solve it because it is obvious that 4 and 7 don't add up to 44.

Answer:

Step-by-step explanation:

4+7=44

11=44

11-44 is -33 i guess is what you are looking for?

Two angles of a triangle measure 55° and 20°.
What is the measure of the third angle of the triangle?
A. 15°
B. 90°
C. 105°
D. 2850

Answers

Answer:

C. 105 is the answer

Step-by-step explanation:

NEED HELP ASAP! 50 POINTS!

The line with slope when m= -4/7 and (0,-11). Use point slope formula, y - yo =m (x - x0)

Answers

y + 12 = -4/7(x - 1.75)

Use the graph to evaluate the function.
f(-5) =
y
-8 -6

Answers

Answer:

-4

Step-by-step explanation:

Go to x value of -5 and go down until you touch line.

Each year a store decreased the price of a certain model of TV by $35. If the
price in 2001 was $1,950, what was the price in 2009?
Group of answer choices

Answers

Answer:

1,670

Step-by-step explanation:

35 x 8 = 280

1,950 - 280 = 1,670

Find the value of each power

Answers

Answer:

(20). 256^0 = 1

(21).  10^2 = 100

(22). 4^4 = 256

(23).  3^5 = 243

Step-by-step explanation:

(20). 256^0 = 1

(21).  10^2 = 10*10 = 100

(22). 4^4 = 4*4*4*4 = 256

(23).  3^5 = 3*3*3*3*3 = 243


need this asap please !:)

at a local strawberry farm customers fill a bucket with strawberries. the function f(x)=4x models the cost for the strawberries, where x is the number of pounds of strawberries in
the bucket. a bucket can hold up to 10 pounds of strawberries. which is an appropriate domain of the function?
*answer choices in picture!*

Answers

answer - o<x<10

thank me later

Write the equation of a line that includes the point (1, 5) and has a slope of 3 in slope-intercept form

Answers

Answer:

y=3x+2

Step-by-step explanation:

y=mx+b

We have our m, which is slope, but we need our y intercept, b.

Substitute your slope, x, and y into the formula and solve for b.

5=3(1)+b

5=3+b

-3 -3

2=b

Now we can plug into equation.

y=3x+2

Explain how to divide an integer by a decimal

Answers

Answer:To divide decimal numbers: Multiply the divisor by as many 10's as necessary until we get a whole number. Remember to multiply the dividend by the same number of 10's.

Step-by-step explanation:

find x

3x
2x+40
x+50
4x

Answers

Answer:

27

Step-by-step explanation:

The sum of all exterior angles of any quadrilateral= 360°

3x+2x+40+x+50+4x = 360°

11x + 90 = 360°

11x = 360 - 90

10x = 270

x = 270/10

x = 27

Having chosen to use a survey to obtain descriptive data on consumers and their drink preferences, you now need to decide how to contact consumers. You want to gather a large quantity of data fairly quickly, while not incurring high costs. How will you collect this data?

Answers

Answer:

Telephone interview, emails

Step-by-step explanation:

From the question you are trying To minimize cost in the collection of the survey data. To do this, we can use either phone interviews or emails. Using telephone methods have high rates of response and we can easily gather responses. It also gives an opportunity to answer any question respondents may have. Email surveys gives an opportunity for respondent's to share more sensitive details and also respond at their own time.

Write the equation of the line that passes through the given points.
(0, -3) and (-4,-10)

Answers

Answer: y = (7/4)x - 3

Step-by-step explanation:

m = (-10 - (-3))/(-4 - 0) = -7/(-4) = 7/4

y-intercept = (0, -3)

y = (7/4)x - 3

Help!!
Find the difference between and 8/15 and-2/3. Show all calculations in your final answer.

Answers

Answer:

-2/15

Step-by-step explanation:

8/15-2/3

8/15-10/15

-2/15

Common Denominator

Anyone know how to do??

Answers

Answer:

x = 15°

Step-by-step explanation:

∠2 and ∠4 are same-side interior angles, meaning they add up to 180

2x + 10 + 4x + 80 = 180

Rearrange (collect like terms)

6x = 180 - 80 - 10

6x = 90

x = 15°

Answer:

x = 15

Step-by-step explanation:

∠2 = 2x + 10

∠4 = 4x + 80

∠2 and ∠4 are supplementary angles, this mean ∠2 + ∠4 = 180

2x + 10 + 4x + 80 = 180

combine similar terms: 6x = 180 - 80 - 10

simplify: 6x = 90

solve for x = 90 / 6

               x = 15

One year Terry had the lowest ERA​ (earned-run average, mean number of runs yielded per nine innings​ pitched) of any male pitcher at his​ school, with an ERA of 2.85 . ​Also, Karla had the lowest ERA of any female pitcher at the school with an ERA of 2.95 . For the​ males, the mean ERA was 4.893 and the standard deviation was 0.949 . For the​ females, the mean ERA was 4.348 and the standard deviation was 0.997 . Find their respective​ z-scores. Which player had the better year relative to their​ peers, Terry or Karla ​? ​(Note: In​ general, the lower the​ ERA, the better the​ pitcher.)

Answers

Answer:

Their respective​ z-scores are:

Thomas : -2.15279

Karla : -1.40221

Which player had the better year relative to their​ peers, Terry or Karla ​? ​

Terry had a better year because he had a lower Era and he was a better pitcher.

Step-by-step explanation:

The formula for calculating a z-score is is z = (x-μ)/σ,

where x is the raw score,

μ is the population mean

σ is the population standard deviation.

any male pitcher at his​ school,

For Thomas:

z = (x-μ)/σ

x = 2.85 μ = 4.893 σ = 0.949.

z = 2.85 - 4.893/0.949

z = -2.15279

For Karla

z = (x-μ)/σ

x = 2.95 μ = 4.348 σ = 0.997.

z = (2.95 - 4.348) /0

z = -1.40221

Their respective​ z-scores are:

Thomas : -2.15279

Karla : -1.40221

Which player had the better year relative to their​ peers, Terry or Karla ​? ​(Note: In​ general, the lower the​ ERA, the better the​ pitcher.)

Terry had a better year because he had a lower Era and he was a better pitcher.

Richard and Teo have a combined age of 35. Richard is 5 years older than twice​ Teo's age. How old are Richard and​ Teo?

Answers

Answer: Teo is 10 years old and Richard is 25 years old

What are the first 4 terms use the explicit rule:
f(n)= 3n-1
(show your work)

Answers

Answer:

25811

Step-by-step explanation:

We are given the rule [ f(n) = 3n - 1 ] and n represents the term.

First term:

f(n) = 3n - 1

f(1) = 3(1) - 1

f(1) = 3 - 1

f(-1) = 2

Second term:

f(n) = 3n - 1

f(2) = 3(2) - 1

f(2) = 6 - 1

f(2) = 5

Third term:

f(n) = 3n - 1

f(3) = 3(3) - 1

f(3) = 9 - 1

f(3) = 8

Fourth term:

f(n) = 3n - 1

f(4) = 3(4) - 1

f(4) = 12 - 1

f(4) = 11

As you can see, the common difference is 3.

Best of Luck!

Answer:

2,5,8,11

Step-by-step explanation:

If n=1, 3n-1 =3*1-1 =3-1 =2

If n=2, 3n-1 =3*2-1 =6-1 =5

If n=3, 3n-1 =3*3-1 =9-1 =8

If n=4, 3n-1 =3*4-1 =12-1 =11

h(x)=2x+5 k(x)=x+3 find (h(k(x)))

Answers

Answer:

h(k(x)) = 2x + 11

Step-by-step explanation:

Step 1: Define

h(x) = 2x + 5

k(x) = x + 3

h(k(x))

Step 2: Substitute and Evaluate

k(x) = x + 3 = x

h(k(x)) = 2(x + 3) + 5

h(k(x)) = 2x + 6 + 5

h(k(x)) = 2x + 11

Given the two functions below, tell me what type of graphs they are and
how p(x) differs from g(x)

p(x)=8x^2
g(x) = x^2

Answers

Answer:

Step-by-step explanation:

p(x) = 8x^2 is an increasing exponential curbed graph which starts from quadrant 2 , passes through the point (0, 8)  on the y axis and rises steeply to the right.

g(x) = x^2 is a parabola ( shaped like a U) which has a minimum value at (0, 0).

and opens upwards either side of the y-axis. This type of curve is called a parabola.

What is the distance in the map (in centimeters) represents an actual distance of 4 kilometers?

Answers

Answer:

400k four hundred thousand centimeters is 4 kilometers

Please help ASAP!!!! Due in 5

Answers

Answer:Y=2

Step-by-step explanation:

Answer:

y =-1

Step-by-step explanation:

A circle is translated 4 units to the right and then reflected over the x-axis. Complete the statement so that it will always be true of the circle at the new location.

The circle at the new location has the original circle.
the same center as
twice the circumference of
half the radius of
the same area as

Answers

Options

The circle at the new location has _____________ the original circle.

- the same center as

- twice the circumference of

- half the radius of

- the same area as

Answer:

the same area as

Step-by-step explanation:

When a circle is translated and reflected, the center of the circle will change; however, its area, circumference, radius and diameter remain the same.

This is so because, translation and reflection only affect the positioning of the circle not the size.

Considering the above analysis, we can conclude that option d answers the question correctly.

Answer:

the same area as

I need help finding the slope, the Y intercept and the equation for this graph???

Answers

Answer:

Step-by-step explanation:

y intercept is 4

slope is 6/3 is 2

y=2x+4

The equation [BLANK] has no solution.

ANSWERS:

13y+2-2y=10y+3-y

9(3y+7)-2=3(-9y+9)

32.1y+3.1+2.4y-8.2=34.5y-5.1

5(2.2y+3.4)=5(y-2)+6y

Answers

Answer:

5(2.2y+3.4)=5(y-2)+6y has no solution

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

The third one down.

32.1y+3.1+2.4y-8.2=34.5y-5.1

Combine like terms

34.5y + 3.1 - 8.2 = 34.5y - 5.1

34.5y - 5.1 = 34.5y - 5.1              y can be anything

===========================

Remove the brackets from D

11y + 17 = 5y - 10 + 6y

11y + 17 = 11y - 10

This gives 17 = - 10 which of course is nonsense.

D has no solution.

Other Questions
Tony bought 3 tickets to a concert for $78. How much will it cost for 6 tickets to the concert if all tickets have the same unit price? Use the table below to help determine the missing value:Number of Tickets 3 4 5 6Cost $78 $104 $130 ?(3 points)Select one:a.$136b.$146c.$156d.$234 Kim is assigned to write an important company report with Philip and Tara, her coworkers. Because Kim prefers to work alone, she decides to do the report herself without telling her boss or her assigned coworkers.Which inappropriate work behavior is Kim exhibiting? (PLEASE ANSWER!) Elena went to a store where you can scoop your own popcorn and buy asmuch as you want. She bought 10 ounces of spicy popcorn for $2.50.1. How much does popcorn cost per ounce?2. How much popcorn can you buy per dollar?3. Write two different equations that represent this situation. Use p forounces of popcorn and c for cost in dollars.4. Choose one of your equations, and sketch its graph. Be sure to labelthe axes. What is 1/20 written as a percent?A. 0.5%B. 5%C. 10%D. 20% How do I solve this? paula y yo ______ amigas Which best describes the authors purpose in a drop in the bucket If line b is perpendicular to line a, and line c isperpendicular to line a, what is the slope of line c?mc= 1)How can we teach our daughters to protect herself?2) what can society do better to reduce the incidents of violence against women? British advantages during the war included a stronger military, greater wealth,and a larger population.O TrueO False Match the character to the tone each represents.patriotism1. Squealerinsincerity2. Napoleonintimidation3. Boxeridealism4 Snowball Determine whether the relation is a function.H={(6,-3), (5,-3), (4,-3), (3,-3), (2,-3)}Does the given relation represent a function?YesNo In her article "Tweens in the Kitchen: Teaching Your Big Kid to Cook," Jolne Bouchon suggests parents show tweens how to cook because it teaches them how to make healthy food choices, eat on a budget, and develop independence. What is most likely the author's purpose for writing this text? A. To persuade parents that tweens should learn to cook B. To persuade the reader to purchase a cookbook for tweens C. To entertain readers with a personal story about a cooking adventure D. To inform readers about the advantages of healthy eating and exercise what is Newton's second law?F=mXaa=F/mm=F/aAll of the above Type of tissue that helps with movement.Immersive Readera. Epithelialb.Musclec.Connectived.Nervous The language and religion of people are physical features of a region.true or false Do you think that participation in a Supervised Agriculture Experience (SAE) prepares a student for a career in the AFN industry? Discuss why you agree or why you dont. Discuss how your particular SAE has prepared you for your future career.HELPPPP !! For horticulture Select the correct answer.Which of these lines is used as an aside?A. "Suddenly a chain reaction of gagging and screaming starts from the back of the line."B. "(in a falsely cheerful voice) We are now ready to board for Flight 5B."C. "I'm very sorry, sir, but you cannot get on the plane with those."D. "Someone needs to tell that to the little guy draped around her neck." Article 2 of the US Constitution gives the president the power to Which of the following best describes a function of the nervous system asdiscussed in class?to store urineO to move limbsto receive stimuli from inside and outside the bodyto take in oxygen and transport it to the cells