Solve the system of linear equations by using the substitution method. Descibe the process you used and the final answer. {5x+y=152x+y=12

Answers

Answer 1

Answer:

x=1 y=10

Step-by-step explanation:

5x+y=15

2x+y=12

y=12-2x

5x+12-2x=15

3x=3

x=1  

5+y=15

y=10


Related Questions

give the coordinates (1,4) after a translation 3 units up and 2 units to the left.

Answers

Answer:

The coordinates would be (3,7)

Mary's Muffins makes 300 muffins on Thursday mornings. On Fridays, they make 10 times as many muffins as they do on Thursdays. How many muffins does Mary's Muffins make on a Friday? *​

Answers

Answer: 3,000

Step-by-step explanation: 300 x 10 = 3000

Answer:

3000

Step-by-step explanation:

300+300=600+300=900+300=1200+300=1500+300=1800+300=2100+300=2400+300=2700+300=3000

What is -7x3 =
Need answers asap!

Answers

Answer:

it is -21

Step-by-step explanation:

make it braintliest please

Answer:

-7×3 = -21

Step-by-step explanation:

I hope it helps ❤❤

The sum of the digits of a given two digits the new numbers is 5 .if the digits are reversed, the new number is reduced by 27 . find the given number ​

Answers

Answer:. The numbers are 41 and 14

Step-by-step explanation: X and Y represent the digits. In the Tens place, the digit has 10× its base value. Therefore we can set up equations to model the information given:

10x+y = 10y + x +27

X + Y = 5

y =5-x rewritten to substitute for y

10x + 5-x = 10(5-x)+x +27

Distribute and then combine like terms:

9x +5 = 50 - 9x +27

Add 9x to both sides; subtract 5 from both sides.

9x +9x = 50+27-5

18x = 72 Combine like terms. Then divide both sides to solve for x.

x = 4

4+y=5 Substitute 4 for x; solve for y.

y=1

Substitute values of x and Y into the original equation and check.

40 +1 = 10 +4 + 27

41 = 14+ 27

True! 41=41

The numbers are 41 and 14.

Kiera and her brother, Mitchell, are saving money to adopt a puppy. Kiera currently has $126
and plans to save an additional $14 each week. Mitchell currently has $42 and plans to save
an additional $20 each week.
How many weeks will pass before Kiera and Mitchell have the same amount of money? How
much money will they each have?

In _____
weeks, Kiera and Mitchell will each have $_____

Answers

It will be $20 each week

Answer:

Step-by-step explanation:

is this equation linear or exponential
f(x)=2x+1

Answers

Answer:

The equation is linear.

Step-by-step explanation:

Notice that variable x is on the first degree.

Answer:

linear

Step-by-step explanation:

uiwue7uwiiwuw8

what is a better deal 12 cans for $0.88 each or 16 cans for $ 0.85 each

Answers

I’ll pay 10.56$ for 12 or 13.60$ for 16... 12 cans is the best option in my opinion

16 cans for .85 cents is a better deal because it is less cents per can than there is in the other deal. May I please be the brainiest? I have never been that and I would love it

√50X3√2=?? help please

Answers

30, i don’t have the explanation i just remember this equation from Algebra 2 for some odd reason

Mrs. Olga’s $250 investment earns 19% interest compounded annually. What will her balance be after 3 years?
A. $421.29
B. $142.50
C. $171.29
D. $14,250

Answers

Answer:

The answer is A. $421.29

Step-by-step explanation:

Just keep finding 19% of the numbers next, and you add that all up and you get the answer.

250 x 19%=47.5. (250+47.5)=> 297.5x19%= 56.525. (297.5+56.525) =>354.025x19%=67.26475

354.025+67.26475=> 421.28975, which can round up to 421.29.

Answer:

easports

Step-by-step explanation:

its in the game

I WILL GIVE YOU BRAINLY PLSS



It costs Fred $0.20 to send a text message from his cell phone. He has already spent $4 in text messages this month. If he has a total of $10 that he can spend
this month on text messages, which inequality shows the greatest number of text
messages that he can send?
A. 4 + 0.20 ≤ 10
B. 4 + 0.20 ≤ 10
C. 4 + 0.20 < 10
D. 4 + 0.20 < 10


PLSS SHOW YOUR WORK PLSS

Answers

Answer:

I think it should be 4+ .20 = 10 so A or B maybe you wrote it out wrong

so the answer is A or B because you have to divied and A and B are the same  he would end up sending 50 msg

ASAP! please help, thanks​

Answers

Answer:

d should be correct

Step-by-step explanation:

prove me wrong

d is the right answer

what are the next 3 terms of the sequence-3, -7, -11, -15?​

Answers

Answer: -19, -23, -27

Step-by-step explanation:

You minus/subtract 3 each time to get your next three terms

help me pass my class .

Answers

Answer:

about 3.6

Step-by-step explanation:

pythagorean theorem

sqrt 13

Please Help! It’s due today!

Answers

Answer:

1) I know that the sum will be negative because a negative number added to another negative number will still be a negative number.

2) First, I simplified -35 + (-61) to -35 - 61, which just equals -96.

-54 + 17 equals 54-17 = 37.  

-96 < 37, so -35 + (-61) is less.

Step-by-step explanation:

The explanation is in the answer section, since your homework asked for me to explain.

Help pls I will mark as brainlest if correct

Answers

Answer:

The slope is [tex] \frac{3}{8} [/tex].

Step-by-step explanation:

Remember: [tex]m = \frac{y_2 - y_1}{x_2 - x_1} [/tex]

☆Just plug in.

[tex]m = \frac{ - 7 - ( - 10)}{0 - ( - 8)} = \frac{3}{8} [/tex]

Read the excerpt from Heart of a Samurai.

[Manjiro] took one last glance behind them and noticed something strange. Dark streaks ran like ribbons through the water.
Which best states the author’s purpose for using the word “strange”?
A. to develop Manjiro’s character
B. to create a feeling of suspense
C. to describe the story’s setting
D. to quicken the pace of the story

Answers

Answer:

B

Step-by-step explanation:

It's creating a feeling of suspense cuz it gives you a creepy feeling that something SHOCKING is going to happen

Answer:

b

Step-by-step explanation:

Write the ordered pair corresponding to the point B.

Answers

Answer:

The ordered pair for point A is (-2, 0). For point B, move to the right 4 units to get an x-coordinate of 4, then move down 3 units to get a y-coordinate of -3. The ordered pair for point B is (4, -3). For point C, move to the right 3 units to get an x-coordinate of 3, then move up 5 units to get a y-coordinate of 5.

Step-by-step explanation:

hope this helps

Answer:

(-2, -3)

Step-by-step explanation:

Find the radius of the given circle with the center at (-2,1) and a point on the circle at (0,3).​

Answers

Answer:

The radius of the given circle ( r ) = 2√2

Step-by-step explanation:

Step(i):-

Given that the center of the circle C = ( -2,1)

Given a point on the circle P = (0,3)

The distance between the center and point is called the radius of  the circle

CP = radius of the circle

Step(ii):-

[tex]CP = \sqrt{x_{2} - x_{1})^{2} +(y_{2} -y_{1} )^{2} }[/tex]

[tex]CP = \sqrt{(0 - (-2))^{2} +(3-1)^{2} } \\CP = \sqrt{4+4}[/tex]

CP = √8 = [tex]\sqrt{4 X 2} = 2\sqrt{2}[/tex]

Final answer:-

The radius of the given circle ( r ) = 2√2

PLEASE HELP ME ITS DUE IN LIKE 10 MINS OMG

Answers

The slope is equal to 5/2.

find the measurement indicated in each parallelogram

Answers

Answer:

UW = EW+UE=2×EW because, EW=UE

7x-2=2×6= 12

7x=14

x=14/7

x=2

2 is the right answer.

Which system of equations has infinitely many solutions? On a coordinate plane, 2 lines are parallel to each other. On a coordinate plane, 2 lines intersect at (negative 1, 0). On a coordinate plane, a line has a negative slope.

Answers

Answer:

On a coordinate plane, a line has a negative slope

Step-by-step explanation:

If a graph only shows one line, there is an infinite amount of solutions. We need two separate line equations to cross at a point in order to find the solution to the system. However, if a graph shows two parallel lines that never cross, there are no solutions to that systems of equations.

Answer:

The correct answer is the last graph (C).

Step-by-step explanation:

edge 2020

What is the slope-intercept equation of the line whose y-intercept is
8 with slope -5?

Answers

Answer:

y = - 5x + 8

Step-by-step explanation:

Given that :

Intercept = 8

Slope = - 5

Recall, the general. Slope - intercept equation :

y = bx + c

Where;

b = slope ; c = intercept

Plugging the Given slope and intercept values, equation becomes ;

y = - 5x + 8

There are 372 players in a tennis tournament. In each round, half of the players are eliminated. Which function can be used to find the number of players remaining in the tournament at the end of x rounds?​

Answers

Answer:show ur homework page I have the same one I think

Step-by-step explanation:

A quantity with an initial value of 6200 decays continuously at a rate of 5.5% per month. What is the value of the quantity after 4 years, to the nearest hundredth?

Answers

Answer:

410.32

Step-by-step explanation:

Given that the initial quantity, Q= 6200

Decay rate, r = 5.5% per month

So, the value of quantity after 1 month, [tex]q_1 = Q- r \times Q[/tex]

[tex]q_1 = Q(1-r)\cdots(i)[/tex]

The value of quantity after 2 months, [tex]q_2 = q_1- r \times q_1[/tex]

[tex]q_2 = q_1(1-r)[/tex]

From equation (i)

[tex]q_2=Q(1-r)(1-r) \\\\q_2=Q(1-r)^2\cdots(ii)[/tex]

The value of quantity after 3 months, [tex]q_3 = q_2- r \times q_2[/tex]

[tex]q_3 = q_2(1-r)[/tex]

From equation (ii)

[tex]q_3=Q(1-r)^2(1-r)[/tex]

[tex]q_3=Q(1-r)^3[/tex]

Similarly, the value of quantity after n months,

[tex]q_n= Q(1- r)^n[/tex]

As 4 years = 48 months, so puttion n=48 to get the value of quantity after 4 years, we have,

[tex]q_{48}=Q(1-r)^{48}[/tex]

Putting Q=6200 and r=5.5%=0.055, we have

[tex]q_{48}=6200(1-0.055)^{48} \\\\q_{48}=410.32[/tex]

Hence, the value of quantity after 4 years is 410.32.

Answer:

442.44

Step-by-step explanation:

Which expression is not equivalent to 3x-2

Answers

Answer: Let's simplify step-by-step.

3x−2

There are no like terms.

So it going to be the same, =3x-2

Step-by-step explanation: hope you understand

Answer:

2x + 2 + x

Step-by-step explanation:

BRAINLEST answer !!


Find the value of y


Answers

Answer:

6 it's the same as the one next to a and b that's also 6

FMFWE,KFJWKJWKLEJWLKERJWLKRJLWKERJLWRJLWRJLWERJWERJWLKRJWERJWLE

Answers

Step-by-step explanation:

Is this some typing error? Please retype your question for assistance

please answer do not answer if u don't know the answer

Answers

Answer :x=3 y=7 (3,7)

Step-by-step explanation: I took algebra last year and I answered your question earlier.

ANSWER NOW AND YOU GET 12 and ill answer one of ur questions

Answers

Answer Im going to geuss the last, Im not sure but it looks right.

Step-by-step explanation: heres my question-->  https://brainly.com/question/20473783

HELP ME PLEASE I REALLY NEED IT!!!

Answers

6126!!!! You are welcome :) I just took this test today
6126!!! Because if you do it out that would be the answer
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