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
Taya2010 [7]
4 years ago
9

guys i need help with solving the system of equations and combining the equations. also show your work. the equations are x-4y=-

12 and 4x-y=12. i need the answer in coordinates. i only need help with 3 questions with this.
Mathematics
1 answer:
Firdavs [7]4 years ago
5 0
X-4y=-12
4x-y=12

eliminate y's
multily 2nd equaiton by -4 and add to top one

x-4y=-12
<u>-16x+4y=-48 +
</u>-15x+0y=-60

-15x=-60
divide both sides by -15
x=4
sub back
x-4y=-12
4-4y=-12
minus 4 both sides
-4y=-16
divide both sides by -4
y=4

x=4
y=4
(x,y)
(4,4)<u>
</u>
You might be interested in
What is the slope of the line that passes through the points (4,1) and ( 0 , − 19 )? Write your answer in simplest form.
Kamila [148]

Answer:

<h3>Therefore, the slope is 5.</h3>

Step-by-step explanation:

Use the slope formula.

<u>SLOPE:</u>

:\Longrightarrow \sf{\dfrac{y_2-y_1}{x_2-x_1} }

  • y2=(-19)
  • y1=1
  • x2=0
  • x1=4

\sf{\dfrac{-19-1}{0-4}=\dfrac{-20}{-4}=\boxed{\sf{5}}

<u>The slope is 5.</u>

I hope this helps. Let me know if you have any questions.

4 0
2 years ago
What is the nth term rule of the quadratic sequence below?<br> -5, -3,3, 13, 27, 45, 67, ...
Svetllana [295]

Answer:

the pattern is +2, +6, +10, +14, +18 etc

so its in increment of 4

the rest is trivial

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
What's the answer? Plz explain.
liraira [26]

Remark

Watch out for the -4<=x<=6 thing. It causes lot's of problems if you are not careful.


Solution.

The second best answer is A and if that restriction, -4<=x<=6, wasn't there, the answer would be A.


When y = - 4, the x value falls outside the restricted domain ( -4<=x<=6) we have been given. so B is not the answer.


When x = - 4 you have to read straight down to see what the y value is. It is - 2. So this is your answer. Only exactly what is the answer. They ask for the minimum value and that is a y value in this case.

So the answer is C <<<<< Answer.


When y = 1 , x = - 2 1/2. That is within the domain, but it is not the minimum value so D is wrong.

8 0
4 years ago
Read 2 more answers
Alfredo's painting his storage shed. He won't paint the top or bottom of the shed so he needs to calculate the lateral surface a
slavikrds [6]

Answer:

He is not painting the bottom or top meaning that he will paint 4 sides total,   when there is a rectangular prism there are 6 sides and 3 pairs of 2 equal sides, so since there is a wall that is 9ft x 7 ft there is two of those, and since there is a wall that is 12 ft x 7 ft there are two of those as well. meaning that (7x9)·2=126 and (12x7)·2=168 when added we get 294. meaning that he needs to paint an area of 294 ft

7 0
2 years ago
The number 56 represents the number of
Alexandra [31]

Answer:

56 is: The sum of the first six triangular numbers (making it a tetrahedral number). The number of ways to choose 3 out of 8 objects or 5 out of 8 objects, if order does not matter. The sum of six consecutive primes (3 + 5 + 7 + 11 + 13 + 17)

Step-by-step explanation:

hope this helps:) mark me brainliest if you want !!

6 0
2 years ago
Other questions:
  • Describe all situation where verticals angles are also supplementary?
    11·2 answers
  • Janelle saved up \$265$265dollar sign, 265, then she bought a sweater for ddd dollars.
    15·2 answers
  • How many more years will it take Inga to pay off the loan
    15·1 answer
  • These numbers are either whole numbers, or negatives of whole numbers. They are called_______.
    5·2 answers
  • Multiply a number n by 5, and then add 3 to product
    13·1 answer
  • Which solution set describes the solutions to the inequality below?
    12·1 answer
  • Classify each conic section and write its equations in standard form. Show work.
    6·1 answer
  • For safety reasons, 3 different alarm systems were installed in the vault containing the safety deposit boxes at a Beverly Hills
    8·1 answer
  • If the area of a rectangle is w^2 - 8w - 9, which of the following could be the side length of the rectangle?
    12·1 answer
  • If you put that same $1000 with a different company that pays 5% and compounds every six months, how much money will you have on
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!