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
Eva8 [605]
2 years ago
15

6x + 4y=10 12x + y= -29

Mathematics
1 answer:
Olin [163]2 years ago
3 0

Answer: x=-3    y=7.

Step-by-step explanation:

\displaystyle\\\left \{ {{6x+4y=10\ \ \ \ \ (1)} \atop {12x+y=-29\ \ \ \ (2)}} \right.\\  We\  multiply\  both\  sides\  of\  equation\  (1)\  by\  -2:\\\left \{ {{(-2)*6x+(-2)*4y=(-2)*10} \atop {12x+y=-29}} \right. \\\\\left \{ {{-12x-8y=-20} \atop {12x+y=-29}} \right. \\We\  summarize\  equations\  (1)\  and\  (2):\\-7y=-49\\-7*y=-7*7\\Divide\  both\  sides\  of\  the\  equation\  by\  -7:\\y=7.\\We\  substitute\  the\  value\  of\  y\  into \ equation\  (1):\\6x+4*7=10\\6x+28=10\\6x+28-28=10-28\\6x=-18\\6*x=6*(-3)\\Divide\  both\  sides\  of\  the\  equation\  by\  6:\\x=-3.

You might be interested in
Cual expresion es equivalente a 5n+8 when n is equal 2
FromTheMoon [43]
If n is 2, you substitute 2 for n and multiply 5(2)+8= 10 +8 = 18
7 0
3 years ago
X<br> x2 = 36<br> What is the positive solution
Pavlova-9 [17]
If you mean x^2=36, then the answer is -6 or 6
8 0
3 years ago
How many ways are there to put 6 balls in 3 boxes if the balls are distinguishable but the boxes are not?
FromTheMoon [43]

This is essentially asking how many different ways to partition 6 into 3 segments.


I am assuming "no ball in a box" is not allowed.


6 can be partitioned as

(4,1,1), (3,2,1), and (2,2,2)


So, calculate each partition, we get

(6 choose 4) + (6 choose 3)*(3 choose 2) + (6 choose 2) * (4 choose 2)

= 15 + 20*3 + 15*6

=165

5 0
3 years ago
What is the volume of the composite figure show in the picture? Please explain how you found the answer if you can. Please help
Crazy boy [7]
We did this this year and by what I can remember I belive it is 4,320 inches. I hope this helps and I hope I got it right so u don't get it wrong.
5 0
3 years ago
Please answer correctly !!!!!!!! Will mark brainliest !!!!!!!!!!
fomenos

Answer:

-8/3

Step-by-step explanation:

find slope

(-1,5) ( 2,-3 )

(-3 -5)/( 2-(-1)) = -8/3

7 0
3 years ago
Other questions:
  • What division problems equal 100
    11·2 answers
  • An avogadro's number of any element is equivalent to
    9·1 answer
  • What is the coefficient in the following expression?
    5·1 answer
  • The biggest bowl of mashed potatoes ever made weighed 4.56 x 10^4 pounds and
    9·1 answer
  • Can you help me with my geometry
    5·2 answers
  • Solve 3(k−4)=18.(1 point)
    7·2 answers
  • Hello and helpppp please!!
    12·2 answers
  • Y = -3x + 2 y = 4x - 5. *<br>can someone solve this for me please?​
    9·1 answer
  • Find the vertex and focus of the<br> parabola.<br> x2 + 6x – 8y + 1 = 0
    10·2 answers
  • A cars odometer reads 12,386 if the driver takes the car to and from work for three days and each trip is 32 miles one way what
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!