1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
andreyandreev [35.5K]
3 years ago
9

Find the solution of this system of equations - 2x + 10y = -22 -2x - 4y = 6

Mathematics
1 answer:
LenaWriter [7]3 years ago
3 0

Answer:

x = 1, y = -2

Step-by-step explanation:

- 2x + 10y = -22 _______(1)

-2x - 4y = 6 _______(2)

From (1),

10y + 22 = 2x

x = (10y + 22) / 2

x = 5y + 11 .______(3)

Substitute (3) into (2),

-2 ( 5y + 11) -4y = 6

-10y - 22 - 4y = 6

-14y = 6 + 22

-14y = 28

y = 28/ -14

y =-2

Substitute y = -2 into (3).

x = 5y + 11

x = 5(-2) + 11

x = -10 + 11

x = 1

Therefore, the solution is x = 1, y = -2.

You might be interested in
A bag contains 8 blue marbles, 6 green marbles, 12 yellow marbles, and 10 orange marbles. A marble is drawn at random from the b
VladimirAG [237]
Total Marbles = 8 + 6 + 12 + 10 = 36

Probability the marble is blue = 8/36

Inverse this to get the probability of the marble not being blue

Probability of the marble not being blue = 28/36 = 7/9
3 0
3 years ago
Read 2 more answers
Directions: Read, analyze, and choose the letter of the correct answer. Write your
svetoff [14.1K]

1) The normal room temperature is said to be about 20°C

2) 5 day is equivalent to 120 hr

3) 756 m³/s is equivalent 56000 L/s

4) It would take the snail 5 hours to crawl 75 m

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

1) The normal room temperature is said to be about 20°C

2) 1 day = 24 hr

5 day = 5 day * 24 hr per day = 120 hr

3) 1 m³ = 1000 L

756 m³/s = 56 m³/s * 1000 L/m³ = 56000 L/s

4) 1 m = 100 cm

75 m = 7500 cm

Time = 7500 / (25 cm/min) = 300 min = 5 hours

Find out more on equation at: brainly.com/question/2972832

#SPJ1

6 0
1 year ago
Rebecca records the
LuckyWell [14K]

Answer:

yes

Step-by-step explanation:

since there are 20 children there has to be more than one that are the same age, because if there are kids up from 0-12 and there are 20 so ther must ne more than one somewhere

6 0
3 years ago
You wish to create a 5 digit number from all digits; 0 1 2 3 4 5 6 7 8 9
NNADVOKAT [17]

Answer:

10234

Step-by-step explanation:

one is the smallest number so its first

and then you can place zero

after that just place the second smallest number

and so on

5 0
2 years ago
Please help!!!!!! i need this done asap!!! brainliest to whoever answers!!
Tatiana [17]

Answer:

volume = Pi(2x^2+3x-5) x (2x+5)^2    or     P1(8x^4+52x^3+100x^2-125)

Step-by-step explanation:

radius = (4x+10)/2 = 2x+5

volume = Pi(2x^2+3x-5) x (2x+5)^2

volume = Pi(2x^2+3x-5) x (4x^2+20x+25)

volume = P1(8x^4+52x^3+100x^2-125)

7 0
3 years ago
Other questions:
  • Plz help me out ASAP
    13·1 answer
  • Which of the graphs below represents the equation 4x + y = 7? Graph A Graph B Graph C Graph D
    9·1 answer
  • What are the terms in 25p+18(p+4)
    15·2 answers
  • High statement is true? Y=log10^x is not a logarithmic function because the base is greater than 0
    10·2 answers
  • HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    8·1 answer
  • If you are good at 9th grade math tell me and send me your number so we can text I really need a tutor or just help please
    15·2 answers
  • Duncan scored 5 points less than twice the number scored by Hines. Together they scored 43 points. How many points did each play
    13·1 answer
  • Please help!What exponent must replace the "?" to make the equation true? <br> (3a) ?(302)2 = 35a?
    5·1 answer
  • Solve the proportion y/10=3/5
    14·1 answer
  • -4.3(9x-2.3)+2.21<br> i dont know the answer to the problem please help
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!