Which statement is true about the equations –3x + 4y = 12 and 1 x - y = 1?
O The system of the equations has exactly one solution at (-8, 3).
O The system of the equations has exactly one solution at (-4, 3).
The system of the equations has no solution; the two lines are parallel.
O The system of the equations has an infinite number of solutions represented by either equation.

Answers

Answer 1

Answer:

           None of these answers is true

Step-by-step explanation:

1x - y = 1     ⇒     x - 1 = y

-3x + 4y = 12

-3x + 4(x - 1) = 12

-3x + 4x - 4 = 12

   x - 4 = 12

     x = 16   ⇒    16 - 1 = y     ⇒    y = 15

Therefore the system of the equations has exactly one solution at (16,15)

Answer 2

Answer:

D- There are infinite solutions

Step-by-step explanation:

-3x + 4y= 12 is the same as 1/4x -1/3y = 1.

1/4x multiplied by 12 is 3x

-1/3y multiplied by 12 is -4y

To flip the negatives you multiply by -1 to get -3x + 4y+ 12 on both equations


Related Questions

i need help with these questions ​

Answers

Hope this helps
It’s the answer for the 4th Question.

Solve the following System Of Equations Using Substitution or Elimination Methods. Show Work.

y = x2 + 3

y = x + 5

Answers

Answer:

There are two pairs of solutions: (2,7) and (-1,4)

Step-by-step explanation:

We will use substitution.

y = x^2 + 3

y = x +5

Since the second equation is equal to y, replace y in the first equation with the second equation.

y = x^2 + 3

x + 5 = x^2 + 3

Rearrange so that one side is equal to 0.

5 - 3 = x^2 - x

2 = x^2 - x

0 = x^2 - x - 2

You may use quadratic formula or any form of factoring to find the zeros (x values that make the equation equal to 0).

a = 1, b = -1, c = -2

Zeros = [tex]\frac{-b + \sqrt{b^{2}-4ac } }{2a}[/tex] and [tex]\frac{-b - \sqrt{b^{2}-4ac } }{2a}[/tex]

Zeros = 2 and -1

Now that you have your x values, plug them into the equations to find their corresponding y values.

y = x^2 + 3

y = (2)^2 + 3

y = 7

Pair #1: (2,7)

y = x^2 + 3

y = (-1)^2 + 3

y = 4

Pair #2: (-1,4)

Therefore, there are two pairs of solutions: (2,7) and (-1,4).

Noa was paid a 25 percent commission for selling a used car.
If she was paid $1,631.24, what was the selling price of the car?
$4,078.10
$6,524.96
$8,156.20
$40,781.00

Answers

Answer:

the answer is 6,524.96

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

what is the slope of the line thru (-9,6) and (-6,-9) ??

Answers

Answer:

-5

Step-by-step explanation:

Answer:

−5

Step-by-step explanation:

SOMEONE HELP ME PLZ :)

I’ll make you the brainliest

Answers

Answer:

I think its e

Step-by-step explanation:

a
no correlation
b
positive
c
quadratic correlation
d
negative

Answers

d

because it is in the negative plan of the graph

What does the expression (20-w)w represent

Answers

Answer:

The area of half of the garden in square meters.

The area of half the garden in square meters

My book is 79 pages. I have been reading 10 pages each day. There are 9 pages left to read. How many days have I been reading the book? Draw a model to show your thinking. Justify your answer.

Answers

Answer:

7 days

Step-by-step explanation:

If there are 9 pages left, that means you have already read 70 pages.

Since you read 10 pages a day, we can find how many days you have been reading the book by dividing 70 by 10:

70/10

= 7

This means you have been reading the book for 7 days

Answer:

7 days

Step-by-step explanation:

With 9 pages left take 79-9 to get 70 pages.

70 pages at 10 pages a day is 70/10 and you get 7 or 7 days.

Which of the following is equivalent to 4x - 3y = 15.

Answers

Answer:

Hence, the slope is 4/3 and y-intercept is 5

Step-by-step explanation:

Hope this helps!

:)

What is the slope?
у
-2
3
-1
0
1
1
3
2
5

Answers

Answer:

Slope = 2

Step-by-step explanation:

5-3

over

2-1 is

2 over 1 which is slope of 2

Simplify this expression using the distributive property

Answers

Answer:

When you use the distributive property, you multiply the two numbers together, just like simplifying any product. You will also see another example where the expression in parentheses is subtraction, rather than addition. You will need to be careful to change the sign of your product.

Step-by-step explanation:

[tex]\huge\boxed{\bold{\mathfrak{Hello\;there!}}}}}[/tex]

The Distributive Property states that

[tex]\dashrightarrow[/tex] [tex]\bold{a(b+c)=ab+ac}[/tex]

[tex]\dashrightarrow[/tex] We multiply a by b and c, and then add the two products.

Example:

[tex]\dashrightarrow[/tex] [tex]\bold{10(x-3)}[/tex]

[tex]\dashrightarrow[/tex] [tex]\bold{10x-30}[/tex]

[tex]\bold{I\;really\;hope\;it\;helps\;you!}[/tex]

[tex]\rm{Have\;a\;great\;day![/tex]

[tex]\boxed{AmiableTeen:)}[/tex]

membership to iron gym cost $40 per month plus $30 registration fee. the monthly cost is deducted automatically from your account. if your starting balance is $350 how many months will you be able to go to the gym before you have to add money to your account?
A. 6
B. 7
C. 8
D. 9

Answers

Answer:

C. 8

Step-by-step explanation:

8 x 40 = 320$ plus 30$ fee is 350

Answer:

8

Step-by-step explanation:

40x 80=320

320+30=350

Which ordered pair would form a proportional relationship with the point graphed below?
(10, 10)
o (26,36)
(70, 60)
(90, 60)

Answers

Answer:

90,60

Step-by-step explanation:

its the only point the line crosses on the graph

Answer:

D: 90, 60

Explanation:

I looked at the graph and that point was on the plotted line

What is the slope of the line on the graph?

Answers

Answer:

Pick two points on the line and determine their coordinates. Determine the difference in y-coordinates of these two points (rise). Determine the difference in x-coordinates for these two points (run). Divide the difference in y-coordinates by the difference in x-coordinates (rise/run or slope).

what is the weight of a square if a triangle weighs 4 grams? explain your reasoning

Answers

Answer:5

Step-by-step explanation:

yh thereu go

Answer:

8 grams

Step-by-step explanation:

u add 2 triangles

Please answer this correctly, and you'll recieve brainliest, Answers below:


28=14=0.25

63=21=2

82=41=4

36=12=0.5

Answers

I believe the scale factor would be 4, seeing as the length of triangle a's bottom side is 2, and triangle b's bottom side is 8.

What is the center of the circle whose diameter has endpoints (18, -13) and (4, -3)?

Answers

Answer:

Step-by-step explanation:

The center of the circle whose diameter has endpoints (18, -13) and (4, -3) will be the midpoint of the coordinates.

The ormua for calculating mid point is expressed as;

M(X,Y) ={(x21+x2/2, y1+y2/2}

X= x1+x2/2

Y = y1+y2/2

From the coordinates

x1 = 18 x2 = 4

X= 18+4/2

X = 22/2

X = 11

y1= -13, y2= -3

Y = -3-13/2

Y = -16/2

Y = -8

Hence the required centre will be at (11,-8)

Look at the multiples of four that have an even number in the tens place. What value do they have in the one's place do you think this pattern? Would continue with multiples of four that larger than 100?

Answers

The multiples of 4 in the tens place are:

12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, . . .

The ones with even number in the tens place are:

20, 24, 28, 40, 44, 48, 60, 64, 68, 80, 84, 88, ...

In the ones value we see the pattern 0, 4, 8

Repeating itself.

And if you should continue for multiples of 4 greater than 100, this pattern will still continue.

please help answer my questions​

Answers

Step-by-step explanation:

OK but what are your questions I will try my best to help you

Answer:

I do not understand :3

Step-by-step explanation:

but sure!!!!

Is this a function or not?

Answers

Answer:

Your answer should be function.

Step-by-step explanation:

Its a function because each input has an output.

Answer:

Not a function.

Step-by-step explanation:

A is the 1st letter in the alphabets.

C is the 3rd letter.

But D is the 4th not the 5th.

A good faith estimate is required by law to be given by the lender to the borrower within three days of submitting a loan application. What are some of the drawbacks of not having that estimate at the time of closing?

Answers

Answer: The loan estimate is standardized, and lists services you are allowed to shop for. You may not be able to shop for an appraisal fee or a credit report fee, but be able to shop for a land survey and title insurance. Lenders will vary in their requirements. Explanation: The Good Faith Estimate (GFE) was designed to encourage consumers to shop and then compare fees from various lenders before choosing a mortgage provider. Its original purpose was to help consumers understand what services they could shop for-so they not only received the lowest interest rate and best terms but saved significantly on closing costs as well.

Some of the drawbacks of not having that estimate at the time of closing are lists of services you are allowed to shop for, You may not be able to shop for an appraisal fee or a credit report fee.

What is loan?

A loan is money, property, or other material goods given to another party in exchange for future repayment of the loan value amount with interest.

The loan estimate is standardized, and lists services you are allowed to shop for. You may not be able to shop for an appraisal fee or a credit report fee, but be able to shop for a land survey and title insurance. Lenders will vary in their requirements.

The Good Faith Estimate (GFE) was designed to encourage consumers to shop and then compare fees from various lenders before choosing a mortgage provider. Its original purpose was to help consumers understand what services they could shop for-so they not only received the lowest interest rate and best terms, but saved significantly on closing costs as well.

For more references on loan, click;

https://brainly.com/question/11794123

#SPJ1

(Will mark brainliest and give $5 Starbucks digital card Include SC!!!) For which set of triangles can you immediately use the AAS congruence criteria to prove them congruent?(1 point)
1. triangles STU and VWX, where ∠T≅∠W, ∠U≅∠X, and SU≅VX

2. triangles GHI and JKL, where ∠G≅∠J, ∠H≅∠K, and GH≅JK

3. triangles MNO and PQR, where ∠N≅∠Q, MN≅PQ, and NO≅QR

Answers

Answer:

the second one

Step-by-step explanation:

Marking brainlesss!!!

Answers

Answer:

7/22 are other cupcakes so the answer is b

Step-by-step explanation:

7/22

Answer:

C  I think

Step-by-step explanation:

Turned all the denominators into 12. Added it and got 10. Multiplied it by 4. Made 40. 8 are remaining.

please help quickly with this ​

Answers

Answer:

x=574

Step-by-step explanation:

it says that on my caculater.

What is the domain and range please?

Answers

Answer:

range -5 ≤ y ≤ 3

domain -5 ≤ x ≤ 3

Step-by-step explanation:

Plssss plsss help!! I can Venmo if that’s how u can help! Thank you!!

Answers

Answer:

And for number 10 the answer is (b)

I hope this helps, Happy learning!!!

please explain this to me and say the answer!! ASAP!!!

Answers

Here....see the attachment...
Hope this helps ^^

27.12-(4.8 exponent 2 - 2×2)

Answer please.

Answers

Answer: 8.08

Step-by-step explanation:

Evan is going to the county fair this weekend. The admission to the fair is $5 and the cost per ride is $.50. Write and solve a linear equation to find out how many rides he can go on.

Answers

Answer:

Evan can go on 30 rides   (based on the assumption that Evan's parent gave him $20)

Step-by-step explanation:

Given that:

The admission to the fair  = $5

The cost per ride = $0.50

Let assume that the number of ride Evan can go = x

So if The cost per ride = $0.50

x ride = $0.50x

We are not told that he is given money by anybody, but let assume his parent gave him $20,

Then, if Evan pays $5 for admission into the fair. Then he will have $(20-5) = $15 left

The relation expressing how many rides Evan can go is:

0.5x = 15

Since the cost per ride = $0.5

x rides cost $15/0.5

x = 15/0.5

x = 30

Hence, Evan can go on 30 rides

FIRST CORRECT ANSWER WILL GET BRAINLIEST
For the given graph below, what is the slope and the equation?


A)zero, x = 1

B)undefined, x = 1

C)zero, y = 1

D)undefined. y = 1

Answers

Answer:

b

Step-by-step explanation:

vertical line through x at one

vertical lines have undefined slopes

can take two points to verify  (1,1)  (1,2)    m= 2-1

                                                                         1-1  

                                                                          1

                                                                          0         undefined zero in denominator

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