I need help please!!!

I Need Help Please!!!

Answers

Answer 1

Answer:

C.-8

Step-by-step explanation:

plug in 2y-4 in x of the second equation meaning 7(2y-4)+5y=-66

multiply and combine like terms then solve for y and you should get -2

then plug in -2 for y in the first equation and you should be able to solve for x


Related Questions

QUESTION NUMBER ONE
FIND THE SALE PRICE OR RETAIL PRICE.
ORIGINAL PRICE: $85
DISCOUNT: 19%

Answers

Answer:

$68.85

Step-by-step explanation:

19% of $85 is $16.15

$85 - $16.15 = $68.85

Solve the following equation by completing the next two lines (showing all work )
X + 6 = 10

Answers

Answer:

x=10-6

x=4

Step-by-step explanation:

for which level

3(2x+ 1) for x = -8
Hi

Answers

Answer:

-45

Step-by-step explanation:

inside the parentheses: 2*-8= -16

                                        -16+1=-15

3 (-15)= -45

Answer:

-45

Step-by-step explanation:

hello

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30
60
190
19988 0
120
150
180
210

Answers

Answer:

hi can u pls enter the right question

Factorise x2 + 4x + 3

Answers

Answer:

(x + 1)(x + 3)

Step-by-step explanation:

Given

x² + 4x + 3

Consider the factors of the constant term (+ 3) which sum to give the coefficient of the x- term (+ 4)

The factors are + 1 and + 3, since

1 × 3 = 3 and 1 + 3 = 4, then

x² + 4x + 3 = (x + 1)(x + 3)

Given that f(x) = x2 – 12x + 27 and g(x) = x – 9, find f(x) · g(x) and
express the result in standard form.

Answers

Answer:

[tex]f(x)\cdot g(x)=x^3-21x^2+135x-243[/tex]

Step-by-step explanation:

We are given the two functions:

[tex]f(x)=x^2-12x+27\text{ and } g(x)=x-9[/tex]

And we want to find:

[tex]f(x)\cdot g(x)[/tex]

So, by substitution:

[tex]=(x^2-12x+27)\cdot (x-9)[/tex]

Distribute:

[tex]=(x^2-12x+27)(x)+(x^2-12x+27)(-9)[/tex]

Multiply:

[tex]=(x^3-12x^2+27x)+(-9x^2+108x-243)[/tex]

Rearrange:

[tex]=(x^3)+(-12x^2-9x^2)+(27x+108x)+(-243)[/tex]

Combine like terms:

[tex]=x^3-21x^2+135x-243[/tex]

Hence:

[tex]f(x)\cdot g(x)=x^3-21x^2+135x-243[/tex]

Please help me out with this one

Answers

Answer:

2%

Step-by-step explanation:

thank u for Ur question:)

helpppppppppppppppppp​

Answers

Answer:

5x + y = -48

Step-by-step explanation:

(y + 3)/(x + 9) =m

=> y + 3 = -5x -45

=> 5x + y + 48 = 0

which fraction is equivalent to 2/4​

Answers

1/2 or in decimals .5

Answer: 1/2

Step-by-step explanation:U need to simplify 2/4 by divide both 2 and 4 by 2 which gives u 1 over 2 (1/2).

Hope it helps :)

The perimeter of a triangle is 38 inches. Two sides of the triangle measure 12 inches and 10
inches. What is the length of the third side of the triangle?

Answers

Answer:

16

Step-by-step explanation:

38-12-10=16

Answer:

16

Step-by-step explanation:

HELLLPPPP
The output of a function is 3 less than 6 times the
input. Find the input when the output is 15.

Answers

Answer:

Step-by-step explanation:

The output of a function is 3 less than 6 times the

input. Find the input when the output is 15.

find out u

what Is 2+2 :)
what Is 5+5​

Answers

Answer:

2+2=4

5+5=10

Step-by-step explanation:

i hope this helps

Answer:

2 + 2 is  4 and 5 + 5 is 10

Step-by-step explanation:

becuase it is :>

HELP ME PLEASE I ONLY HAVE 5 MIN

Answers

Answer:

L = (-1.5, 2) U = (1.5, 2.5) V = (1, -0.5)

Step-by-step explanation:

Just divided everything by two.

Half of a number decreased by 8 is 3 *

Answers

Answer:

the number is 22

Step-by-step explanation:

[tex]11 - 8 = 3[/tex]

[tex]11 + 11 = 22[/tex]

do you smiply slope...........

Answers

Answer:

Yes... or no

Step-by-step explanation:

You simplify slope if you can simplify the numerator and denominator.

I hope this helped, please give brainliest if this is correct! Thank you!

Answer:

Give brainlist ti that person: )

Step-by-step explanation:

I will give brainlist!!

Answers

Answer: I gave both percentage and price.

10 years:

Coin A) is worth 25$ with 7%  $25.70  0.7%

Coin B) is worth 50$ with 5% $50.50  0.5%

Coin C) is worth 60$ with 4% $60.40 0.4%

20 years:

Coin A) $26.40  1.4%

Coin B) $51.00  1%

Coin C) $60.80  0.8%

30 years:

Coin A) $27.00  2%

Coin B) $51.50  1.5%

Coin C) $61.20  1.2%

60 years:

Coin A) $29.20  4.2%

Coin B) $53.00  3%

Coin C) $62.40  2.4%

Describe and correct the error in finding the different of the polynomials ..

Answers

Answer:

Am not seeing any error

[tex](4 {x}^{2} - x + 3) - (3 {x}^{2} - 5x - 6) \\ = (4 - 3) {x}^{2} - (5 + 1)x + (3 - 6) \\ = {x}^{2} - 6x - 3[/tex]

Help I’ll give out brainliest thank you

Answers

Answer:

37 hours

Step-by-step explanation:

to find out how many hours it will take the ship to get to the bahamas, we must take the distance that needs to be traveled and divide it by the distance traveled every hour (m/h)

859 / 23 = 37.3478261

now, rounded to the nearest hour, that would be 37 hours

Please help me out with this

Answers

Answer:

10

Step-by-step explanation:

2+2+6

Answer:

10

Step-by-step explanation:

The right side of the graph shows the sum of the cars. 2 black Impala's + 6 white Impala's + 2 red Impala's = 10 total Impala's (that is, if all of the Impala's are one solid color)

How do you expand double brackets

Answers

You pull them and they expand :) !!!! Yea

Answer:

Step-by-step explanation:

Expanding double brackets is easy. Let me give u an example :

(x+5)(x+1)

so the way i do it is

1.Write the second bracket (x+1) twice :

(x+1) (x+1)

2. split the first bracket (x+5) like this :

x(x+1) +5(x+1)

3. Simplify

x*x = x²

x*1 = 1x

5*x = 5x

5*1 = 5

x² + 1x + 5x + 5 = x² + 6x + 5

so the final answer is gonna be x² + 6x + 5

in order to factorize it, u basically do the following :

1. Find two numbers, that multiply to give the last number (a.k.a 5 ) and add to give the middle number (a.k.a 6) The middle number is the sum, and the last number is the product.

so u write all the combo's that make the number 5 :

1 x 5

The two number's are gonna be 1 & 5, because 1 + 5 = 6 (the sum) and 1 x 5 = 5 (the product)

This example is easy since it doesn't include any negative numbers, so u just do = (x+1) (x+5) or (x+5) (x+1) same thing ;-;

I think u should just ask a teacher or watch a tutorial or smthn, this is like the worst explanation ever. But yeah once u know the method, you'll find expanding double brackets rly easy.

Which is the best description of an extraneous solution?

A solution that results in a true statement when substituted back into the original equation.

A solution that results in a false statement when substituted back into the original
equation.

A solution that is false for all absolute value equations.

A solution that is true for all absolute value equations.

Answers

Answer:

A solution that results in a false statement when substituted back into the original  equation.

Step-by-step explanation:

An extraneous solution is one that arises in a solution of equations, but which on closer inspection is not a solution to the original equation. Therefore, they imply an error in the development of the solution of the equation, so they cannot be taken as a valid solution since, when replacing the result with the missing variable, the equation does not obtain the desired result.

155 Divided By 9,765

Answers

Answer:

0.0158730159

Explanation:

I need help ASAP, please

Answers

Answer:

y = 4x + 40 and y = 40

Step-by-step explanation:

BAD  QUESTION.

Believe it's y = 4x + 40 and y = 40. Others don't make sense. Sorry for bad explanation, but I'm a little unsure do to the question...

The second one is probably x > 10

Sorry in advance, try the question yourself if you can and check cause.

should i ask my cruch out

Answers

Answer:

go for it!!!!

Step-by-step explanation:

Answer:

If you feel like you should. Just make sure they are single.

4(9y-6) please helpppppp

Answers

Answer:

36y-24

Step-by-step explanation:

Answer:

36y - 24

Step-by-step explanation:

4(9y - 6)

First Step: Multiply both 9y and -6 by 4

36y - 24

I got to type a response ​

Answers

Answer:

This is actually pretty easy.

13+3-11 is 5

1+0-2 is -1

8+5+6 is 19

0-3-4 is -7

So you add all of the solutions and then thats your answer D+C equals 24+-8

Step-by-step explanation:

Write the word sentence as an inequality.
The quotient of a number y and -2.5 is less than
10.5.

Answers

Answer:

-[tex]\frac{y}{2.5}[/tex] < 10.5

Step-by-step explanation:

Can someone help please

Answers

the radius is the length of the line going from one side to the middle some of the questions are already like that so just copy it down some go from one side to the other so basically you have to double them ones the diameter are the length of the lines going form one side to the other and to work out the radius from a diameter u just half the diameter the circumference formula is c=2 π r which means the circumference equals 2 x π x the radius
i hoped this helped its probably a bit confusing if so just comment and i’ll help


Which value is a solution to the inequality x <4

Answers

Answer:

any number under 4 so 3 2 1 -1 -2 -3 -4 -5 -6 -7 etc

Step-by-step explanation:

Answer: oh kay then....

3-78

please awnswer :d

Answers

Answer:

The answer would be -75

Step-by-step explanation:

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