How to solve 6x + y= -5, -6x + 12y=96 using elimination and does it have no solution or many solutions?

Answers

Answer 1

Answer:

x = -2

Step-by-step explanation:

Arrange 6x + y= -5, -6x + 12y=96 vertically:

6x + y= -5

-6x + 12y=96       Now combine like terms:

--------------------

       13y = 91

Solving for y by dividing both sides by 13:  y = 7

Find x by substituting 7 for y in the second equation:  -6x + 12(7) = 96

Then -6x = -84 + 96, or:

-6x = 12, and so x = -2


Related Questions

please can i have help

Answers

Answer:

1/4 i think

Step-by-step explanation:

Answer:

y= -- 1/4 x + 7/4

y= -- 1/4 x + 1.75

Step-by-step explanation:

i runed it through desmos and i was just like the picture dont  know how to explain it

4.
Sasha has 47 fewer makers than Ron. Together they have 247 markers.
Let x = the number of markers Ron has.
Write an equation to solve for x.

Answers

247= x + (x-47)
or
x + (x-47)= 247

anyone doing epic bright thinker

Answers

What is epic bright thinker

Catherine is adding fractions for her homework. Here is some of the work that Catherine has done. 2/3 + 3/5 = 5/8. In the space below, explain the error that Catherine made when adding.

Answers

Step-by-step explanation:

2/3+3/5

=10+9/15

=19/15

The mistake she made was that she didn't took right LCM.

The value of the fraction 2/3 + 3/5 is 19/15.

What is a fraction?

A fraction is written in the form of a numerator and a denominator where the denominator is greater that the numerator.

Example: 1/2, 1/3 is a fraction.

We have,

2/3 + 3/5

= (10 + 9)/15

= 19/15

Thus,

The value is 19/15.

Learn more about fractions here:

https://brainly.com/question/24370499

#SPJ5

best anwser gets brainly yt no work correct anwser​

Answers

Answer:

2nd One 7 times 10 -2

Step-by-step explanation:

Answer:

7×10^ -2

.....................

Need help with this asap!

Answers

Answer:

1. m

Coefficient: 1

Variable: m

Degree: 1

Constant: Does not have one (if I am correct)

2. [tex]-7a^{2}[/tex]

Coefficient: -7

Variable: a

Degree: 2

Constant: Does not have one (if I am correct)

3. [tex]3t^{2} +4t-6[/tex]

Coefficient: 3

Variable: t

Degree: 2

Constant: -6

4. [tex]2-h[/tex]

Coefficient: 1

Variable: h

Degree: 1

Constant: 2

What is the product of (x+3)(x-3)=7

Answers

Answer:

Step-by-step explanation:

What you have here is an equation with two roots.  The "product" is (x + 3)(x - 3), which comes out to x^2 - 9.

Thus, you have x^2 - 9 = 7, or x^2 - 16 = 0, and the roots of that are {-4, 4}.

The scatter plot shows the weight of a child each month.
The birth weight of the child is ?
kilograms. The child gains an average of
? per month

The first ? options
-0
-3
-3.5

The second ? options
-0.5
-1
-1.5

Answers

Answer:

3.5

0.5

Step-by-step explanation:

................

How many pizzas can Naylah make if she had 9 blocks of cheese?

Answers

Answer:

well it depends on how much cheeses she uses on the pizzas

Step-by-step explanation:

Pleaseee helppp answer correctly !!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!

Answers

Answer:

<E is congruent to <D

Step-by-step explanation:

Hope that helps!

ahhh I have no idea but can I get one

Read the excerpt from "The Tell-Tale Heart."
Which statement best explains how the reader can
determine that the narrator is unreliable?
But you should have seen me. You should have seen
how wisely I proceeded—with what caution—with what
foresight—with what dissimulation I went to work! I was
never kinder to the old man than during the whole week
before I killed him. And every night, about midnight, I
turned the latch of his door and opened it-oh so
gently! And then, when I had made an opening
sufficient for my head, I put in a dark lantern, all closed,
closed, that no light shone out, and then I thrust in my
head. Oh, you would have laughed to see how
cunningly I thrust it in!
O The narrator is very kind to the old man during the
whole week before the murder.
O The narrator checks on the old man every night at
midnight to ensure his well-being.
O The narrator closes the lantern tightly so the old
man is not awakened by the bright light.
O The narrator believes that his audience will approve
of and even laugh at his plot to murder the old man.

Answers

The narrator checks the old man at every night at midnight

Answer:

The narrator checks the old man at every night at midnight

Step-by-step explanation:


What do you add to
17 to make 5?

Answers

You would add -12 to 17 to make 5.

Carlos is a business marketer. He earns $28.75 per hour. He works 3934 hours. What is
his straight-time pay?

Answers

Answer:

113,102.5Step-by-step explanation:

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag the item to the trashcan. Click the trashcan to clear all your answers.
Complete the following proof.

Given: Two concentric circles with AB tangent to smaller circle at R



Prove: AR = RB

Answers

Step-by-step explanation:

The statements are

1.Draw Oa,Ob

2.OR is perpendicular to AB

3.OR is congruent to OR

4.OA is congruent to OB

5.Triangle AOR is congruent to BOR.

6.AR is congruent to AB.

The reasons are

1.Auxalaritly lines

2 Radius are perpendicular to tangent

3.Reflexitive

4.Radii of same circle are equal

5.HL theorem, (since we know hypotenuse and a leg)

6.CPCTC

Which phrase describes a nonlinear relationship?
a. The distance traveled by a car moving at constant speed in relation to time
b. The perimeter of a square in relation to the side length.
c. The cost of gasoline in relation to of the number of gallons purchased
d. The area of a circle in relation to the radius.

Answers

Answer: b. The perimeter of a square in relation to the side length.

I hope this helps you :)

Deidre goes out for lunch and realizes that she only has $10 with her. If she wants to leave a 20% tip and knows she will have to pay 5% tax on her lunch, what is the most expensive lunch she can order?

Answers

Answer:

$7.60

Step-by-step explanation:

10 decrease 20% =

10 × (1 - 20%) = 10 × (1 - 0.2) = 8

8 decrease 5% =

8 × (1 - 5%) = 8 × (1 - 0.05) = 7.6

Please I don’t understand this can someone help

Answers

Answer:

C

Step-by-step explanation:

The question is hard and i understand why youre confused but its C because i learned about stuff like this in 5th grade and im good at it im so sorry if im wrong but im almost positive its C hope i helped!

y = f(x + c) will shift f(x) left by c units

For a reflection about the x-axis, a NEGATIVE SIGN in placed in front of f.

Knowing this fact, the answer is -f(x + 4).

7. ¿Cuál es el valor de x en la ecuación:
8x2 + 3 - 15 ?
5
A) - 6
B) + 5
C) - 4
D) + 3​

Answers

I think C. Hope this help! I don’t wanna be rude but can I have brainliest please???!

A credit card advertises an annual interest rate of 23%.
What is the equivalent monthly interest rate?

Answers

Answer:

Interest rates is equal to 23%

The area and length of a rectangle are given below. Find the w, the width.

Answers

Answer:

1.5

Step-by-step explanation:

yaaa

Answer: Choice B)   1 & 1/2 feet

This is the same as 1.5 feet and it is equivalent to the improper fraction 3/2.

============================================================

Explanation:

Let's convert the given mixed numbers into improper fractions.

A = 5 & 1/3 = 5 + 1/3 = 15/3 + 1/3 = (15+1)/3 = 16/3

L = 3 & 5/9 = 3 + 5/9 = 27/9 + 5/9 = (27+5)/9 = 32/9

So the area and length are 16/3 and 32/9 respectively.

-------------------

Let's solve for the width W

area = length*width

A = L*W

16/3 = (32/9)*W

9*(16/3) = 9*(32/9)*W ..... multiplying both sides by 9

48 = 32W

32W = 48

32W/32 = 48/32 ....... dividing both sides by 32

W = 48/32

W = (32+16)/32

W = 32/32 + 16/32

W = 1 + 1/2

W = 1 & 1/2 feet is the width

This is equivalent to 3/2 since 48/32 = 3/2

It's also equivalent to 1.5 because 3/2 = 1.5

HELP ME PLEASEEE!!
8TH GRADE MATHH

Answers

Answer:

45

Step-by-step explanation:

Look at the line which says x and 135⁰

they add up to 180

SO,

x+135=180

×=180-135

x=45

I will give you stuff if you answer correctly

Answers

I think is the 3rd sorry if I’m wrong

Which is the better deal?
At the Willow market you can buy 6 bags of apples for $29.76.

At the Orchard Market you can get 2 bags of apples for $10.14.

Answers

Answer:

The Willow market is better

Step-by-step explanation:

Answer: Orchard market

Step-by-step explanation:When you divide 6 by 29.76 and 2 by 10.14 you get a greater value from willow market

What is the value of x in the equation x + 10 = 13?
O-3
03
0 13
O 23

Answers

Answer:

3

Step-by-step explanation:

x+10=13

x+10-10=13-10

Simplfiy

x=3

Hi! Your answer is x = 3.

Please see an explanation for a clear and better understanding to your problem.

Any questions about my answer and explanation can be asked through comments! :)

Step-by-step explanation:

Our goal is to find the value of x. That means what we have to do is to isolate x-term first.

[tex]\huge{x+10=13}[/tex]

To isolate a variable means that to make a variable as a subject or also known as leaving a variable alone. To isolate the x-term for this problem, simply subtract both sides by 10 so we can get rid of 10 from the left side.

[tex]\huge{x+10-10=13-10}\\\huge{x+0=3}\\\huge{x=3}[/tex]

If you are not sure that the answer is correct or not. We can substitute the value of x in the equation.

[tex]\huge{x+10=13}[/tex]

Substitute x = 3 in the equation.

[tex]\huge{3+10=13}\\\huge{13=13}[/tex]

The equation is true for x = 3. Hence, we can conclude that x = 3 is the solution to the equation.

File attached
Please help me

Answers

Answer:

c

Step-by-step explanation:

does anyone know all the real solutions to this equation?

Answers

Answer:

this problem isn't recognized, please make sure the input is complete!

Step-by-step explanation:

19/24 as a decimal rounded to the nearest hundreths

Answers

Answer:

0.79

Step-by-step explanation:

19 / 24 is 0.79166667

So it's 0.79

Answer:

0.79

Step-by-step explanation:

How much higher is -200m than 450m

Answers

Answer:

650

Step-by-step explanation:

its ez trust

Answer:

10826

Step-by-step explanation:

hdsjsjdbebevehejejhehd

1. a group of friends went to the movies, and the three guys each bought two tickets (t), a popcorn (p) and two drinks (d) for themselves and their dates.

After distributing, we can represent this situation with the expression. __________________.

Answers

Answer:

6t + 3p + 6d

Step-by-step explanation:

Given - A group of friends went to the movies, and the three guys each      

            bought two tickets (t), a popcorn (p) and two drinks (d) for

            themselves and their dates.

To find - After distributing, we can represent this situation with the

              expression.

Proof -

As given , three guys each bought two tickets (t), a popcorn (p) and two drinks (d) for themselves and their dates.

Let ticket = t

     popcorn = p

     drink = d ,

Then,

The expression becomes -

3[2t + p + 2d ] = 6t + 3p + 6d

∴ we get

We can represent this situation with the expression - 6t + 3p + 6d

7 more than twice z ..............................................................

Answers

Answer:

2z+7

Step-by-step explanation:

2*z+7

2z+7

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