−5x + y = −2 −3x + 6y = −12 solved by substitution please work so i can understand

Answers

Answer 1

Answer:

x=0 and y= -2

Step-by-step explanation:

−5x+y=−2for y:

−5x+y=−2

−5x+y+5x=−2+5x(Add 5x to both sides)

y=5x−2

5x−2foryin−3x+6y=−12:

−3x+6y=−12

−3x+6(5x−2)=−12

27x−12=−12(Simplify both sides of the equation)

27x−12+12=−12+12(Add 12 to both sides)

27x=0

x=0

Substitute0 for X in y=5x−2:

y=5x−2

y=(5)(0)−2

y=−2(Simplify both sides of the equation)

Answer 2
Make y subject:
y = -2 + 5x
Sub into other equation as y:
-3x + 6(-2 + 5x) = -12
-3x -12 + 30x = -12
27x = 0
x = 0
Sub in X to find Y:
-5(0) + y = -2
y = -2

Related Questions

85% of what number is 17

Answers

Answer:

20

Step-by-step explanation:

To solve this problem, we must first assign a variable, x. Now, converting the words into a math equation, we get:

85% * x = 17.

Soliving the linear equation, we get:

0.85x = 17.

So, x = 20.

Hence, our answer is 20.

A store pays $72 for a crystal vase. The store marks up the price by 50%. What is the amount of the mark-up?​

Answers

Answer:

$36.00 markup

Step-by-step explanation:

$72 x 50% (0.50) = $36.00

ILL MARK U BRAINLIEST HELP!!!

Answers

That is so hard why u I understand how u feel

Answer: x= 14

Step-by-step explanation: look at transversal ED. Angle E and angle D are alternate interior angles of this transversal. Alternate interior angles are equal. Now we need to find angle measure of D to solve. The triangle angle sum theorem states that all interior angles of a triangle sum to 180 degrees. 50+ 48 + D =180.

Measure of angle D is 82. Now that we have the two alternate interior angles, we set them equal to each other to solve.

6x-2= 82. Add 2 to both sides. 6x = 84. Divide both sides by 6. X =14

7x(4x2 – 3x + 9) - 2(x2 + 4x3 - x)

Answers

Answer:

20x the power of 3 -23x to the power of 2 +65x

Step-by-step explanation:

find the volume of the figure
PLEASE HELP!!
I-READY

Answers

Answer:

where's the figure Hun??

The interior angles formed by the sides of a quadrilateral have measures that sum to 360°

What is the value of x?

Answers

Answer:

Is it x = 85

196 +2x+(3x-6)

subtract 196 on both sides

simplify

add 6 on both sides

divide by 2

HELP IM SO CONFUSED AGHHHH

Answers

Answer:

Ok... Move 630% to match up with 6.3. Move 63% to match up with 0.63. Next, move 6.3% to match up with 0.063...

I hope I'm not too late...

What are the solutions to 2(x-9)^2=72

Answers

Answer:

x=15

Step-by-step explanation:

isolate the variable by diving each side by factors that don’t contain the variable
x = 15, 3

Factor the quadratic expression. 3x^2-2x-5

Answers

first subtract 2 from - 5 which is 7 then subtract 3-2 then you would get x = 7 that would be my guess.

Omg I’ve tried this so many times hopefully it works now✋but help

Answers

Answer:

Inequality Form:

k > 3

Interval Notation:

( 3 , ∞ )

Step-by-step explanation:

Solve for  k  by simplifying both sides of the inequality, then isolating the variable.

Answer:

k>3

Step-by-step explanation:

How to do this:

re-wright it: k+11>14

                     -11>-11

                   k>3

Hoped I helped!

Consider the statement RIM ≈ WHL for the figure below,
Which of the following statements represents and supports the statement above?

A)The triangles are congruent by ASA.

B)ZR and ZW are not corresponding angles.

C)The triangles are congruent by AAS.

D)RI and HL are not corresponding sides.

Answers

Answer:

I think its D but im not completely sure. Good luck:)

Step-by-step explanation:

Please help!!
Concert tickets cost $25 each. A college student ordered some
tickets online. There was a service charge of $3 per ticket. The total came
to $252. How many tickets did the student order?

Answers

The student ordered 9 tickets total

What is the best word to describe the probability that the spinner will stop on 1? justify your reasoning.
A certain
B unlikely
C impossible
D likely
*the clock ranges numbers form 1 - 6*

Answers

Answer:

it is b

Step-by-step explanation:

A stero in the shape of a triangle pyramid has a height of 6 inches The area of the base of the speaker is 11 square inches

Answers

Answer: 22 inch

Step-by-step explanation:

Answer:

22 inches

Step-by-step explanation:

Plsss help i know it's easy lol

Answers

It has to be the 3 one hopefully I right

A local city collects 8% sales tax. If the
total purchase was $216.00, then how
much was collected for sales tax?

Answers

If you take the total, and multiply it by the sales tax (.08) then you will get $17.28
(216x.08)

I keep struggling on this question can someone help me figure it out

Answers

Answer:

the last one

Step-by-step explanation:

(:

Divide £945 in the ratio 2:5

Answers

1) Add the total ratios (2+5=7)
2) Divide by cost to find 1 (945/7= £135)
3) Multiply that number by the ratio
270:675
When you add it up it should give your total from the beginning.
Hope this helped :)



select graph that matches the inequality

Answers

Answer:

The answer is

Step-by-step explanation:

C

please answer my question giving away a lot of points​ !

Answers

Answer:

C?

Step-by-step explanation:

Please helppppppp meeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Answers

Answer:

y = x + 8

Step-by-step explanation:

For 8cm of thread, 1cm of the bracelet may be produced. therefore being y(thread) = x(bracelet) with the addition of 8 (+8). Hope this helps!

How much can the Ball family expect to pay per year for tuition to a private college?
a. $8,750
b. $9,250
c. $32,200
d. $33,100

Answers

The answer is D

132,400 divided by 4 is 33,100

If you had the same questions as me here's the rest of the answers to the test

To all who see's this in the future You Are Welcome!

1. Which of the following is an annual expense?

electric bill

savings

car insurance*   (Correct Answer)

rent

2. You spent these amounts on gasoline for the past four months: $67, $78, $53, $89.

What should you budget for gasoline this month?

$89

$72*   (Correct Answer)

$70

$53

3. Home insurance costs $468 annually.

How much should you budget monthly for home insurance?

$58

$45

$40

$39*   (Correct Answer)

4. You spend $890 a month on living expenses.

If your monthly income is $1500, what percent of your income do you spend on living expenses?

Round to the nearest tenth percent.

59.3%*   (Correct Answer)

37%

16.9%

5.93%

5. Which of the following is a fixed expense?

transportation

water bill

car payment*   (Correct Answer)

clothing

6. Mary's Monthly Budget

Income $617 Fixed Expenses

 Rent $150

Living Expenses Emergency Fund $30

Electric $30 Annual Expenses

Transportation $60 Car Insurance $850

Food $200 Books $400

Entertainment $40 Tuition (parents pay)

What are the total living expenses?

$330*   (Correct Answer)

$360

$510

$945

7. Mary's Monthly Budget

Income $617 Fixed Expenses

 Rent $150

Living Expenses Emergency Fund $30

Electric $30 Annual Expenses

Transportation $60 Car Insurance $850

Food $200 Books $400

Entertainment $40 Tuition (parents pay)

What is the monthly share of the annual expenses?

$100

$104*   (Correct Answer)

$114

$150

8. Mary's Monthly Budget

Income $617 Fixed Expenses

 Rent $150

Living Expenses Emergency Fund $30

Electric $30 Annual Expenses

Transportation $60 Car Insurance $850

Food $200 Books $400

Entertainment $40 Tuition (parents pay)

What describes the status of Mary's budget?

it is in deficit

it is balanced

it is in surplus*   (Correct Answer)

9. Mary's Monthly Budget

Income $617 Fixed Expenses

 Rent $150

Living Expenses Emergency Fund $30

Electric $30 Annual Expenses

Transportation $60 Car Insurance $850

Food $200 Books $400

Entertainment $40 Tuition (parents pay)

The fixed expenses are what percent of Mary's income?

34.3%

29.2%*   (Correct Answer)

20.1%

2.9%

10. The pie chart represents the Chong family budget.

If their monthly income is $4670, how much do they spend on living expenses?

$1168

$1205

$1635*   (Correct Answer)

$1868

11. Cost of Raising a Child In 8 Years

Birth to 5 y old $91,200

5 to 18 y old $167,000

4 y Public College $35,000

4 y Private College $132,400

If the Ball family has a child in eight years, how much can they expect to spend to raise the child, per year, from birth to five years of age?

$22,800

$21,530

$20,890

$18,240*   (Correct Answer)

12. Cost of Raising a Child In 8 Years

Birth to 5 y old $91,200

5 to 18 y old $167,000

4 y Public College $35,000

4 y Private College $132,400

How much can the Ball family expect to pay, per year, to raise the child from birth to 18 years of age?

$12,846

$13,458

$14,344*   (Correct Answer)

$15,188

13. Cost of Raising a Child In 8 Years

Birth to 5 y old $91,200

5 to 18 y old $167,000

4 y Public College $35,000

4 y Private College $132,400

How much can the Ball family expect to pay per year for tuition to a private college?

$8750

$9250

$32,200

$33,100*   (Correct Answer)

14. Let the equation C = 2.32 N + 34,180 represent the cost of raising a child, C, on an income, N.

If the Corlone family has an income of $40,000 annually, what is the expect cost of raising a child?

$122,460

$123,540

$125,620

$126,980*   (Correct Answer)

15. Let C = 2.32 N + 34180 represent the cost, C, of raising a child to 18 y on an income, N.

If the cost is $200,000, what is the income?

$71,474*   (Correct Answer)

$72,382

$73,521

$74,856

What is 35^1/3 in the simplest radical form

Answers

The answer would be approximately 3.27

consider this right triangle. determine wheather each equation is correct. select yes or no for each question

Answers

Answer:

i not now

Step-by-step explanation:

An element with a mass of 600 grams decays by 27.8% per minute. To the nearest
tenth of a minute, how long will it be until there are 2 grams of the element
remaining?

Answers

Answer:

17.5 minutes

Step-by-step explanation:

i just put 600 times 0.722^x=2 in desmos graph and got that

Find each difference. If you get stuck, consider drawing a number line diagram.

9 − 4

4 − 9

9 − ( - 4 )

- 9 − ( - 4 )

- 9 − 4

4 − ( - 9 )

- 4 − ( - 9 )

- 4 − 9

Answers

1)5
2)-5
3) 13
4)-5
5)-13
6)13
7)5
8)-13

Solve for x, round to the nearest tenth.
6
12

Answers

Answer:

its 10 tenths because 6 is closer to 10 than 0 and when you have double digits you always look at the second number so that would round to 10

FREE BRAINLIEST! if you can answer this correctly ill give you brainliest and answer some of the questions you have posted :) thank you very much!!! (22pts)

Answers

Answer:

(3x+1)(x-2)

Step-by-step explanation:

hope this helps!!

1.)5g=__mg
2.)875mg=__g
3.)15kg=__g
4.)25000mg=__g
5.)85cg=__mg​

Answers

Answer:

Answer:

Step-by-step explanation:

1.)5000mg

2.)0.875g

3.)15000g

4.)25g

5.)850mg

I hope it's helpful!

PLEASE ANSWER ALL OF THESE FOR 97 POINTS AND YOU ARE THE GOAT

Answers

Answer: It dosn't show anything for me. did you post it?

Answer:

4.

Step-by-step explanation:

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