-3x + y = 22
-12x – 10y=-10

Answers

Answer 1

Answer:

              x = -5,  y = 7

Step-by-step explanation:

-3x + y = 22     ⇒  y = 3x + 22

-12x - 10y = -10  and  y = 3x + 22

-12x - 10(3x + 22) = -10

-12x - 30x - 220 = -10

               +220       +220

 - 42x  = 210  

 ÷(-42)     ÷(-42)

    x = -5

y = 3(-5) + 22 = -15 + 22 = 7


Related Questions

what is the least common denominator of the fractions 2/3 and 3/5? HELP PLEASE

Answers

Answer:what is the least common denominator of the fractions 2/3 and 3/5? HELP PLEASE

Step-by-step explanation:

Answer:

I think the LCM is 4/5

Step-by-step explanation:

which answer is it ????

Answers

Answer: it is option 2 person

Step-by-step explanation:

4x+12y+4z=-16 12x-12y+8z=8 4x+12y-4z=0 ​

Answers

I try my best I will be adding other people to help you

Two fifteenths times 10

Answers

Answer:

1.3

Step-by-step explanation:

The volume of a pyramid, V, is calculated using the formula V = 1/3 AH, where A is the area of the base and H is the height of the pyramid.

Rearrange the formula to solve for the base area (A)

Answers

Answer:

A= 3V/H

Step-by-step explanation:

V=1/3 AH

multiply 3 on both sides

3V=AH

divide both sides by H

3V/H=A

solve for the equation 5x+5=3x+11

Answers

The answer for this equation is X=3

if f(x) = 5x -1 find f(1)

Answers

f(1)= 5(1)-1

f(1)= 5-1

f(1)= 4

Answer: 4

The answer will be 4
F(1)=5(1)-1
F(1)=4

Cuanto es la respuesta de -126=14k?

Answers

Answer:

[tex] \boxed{ \bold{ \huge{ \boxed{ \text{k = - 9}}}}}[/tex]

Step-by-step explanation:

[tex] \star{ \text{ - 126 = 14k}}[/tex]

[tex] \text{step \: 1 \: : Intercambia los lados de la ecuación}[/tex]

[tex] \hookrightarrow{ \sf{14k = - 126}}[/tex]

[tex] \text{step \: 2 : Divide ambos lados por 14}[/tex]

[tex] \hookrightarrow{ \sf{ \frac{14k}{14} = \frac{ - 126}{14}}} [/tex]

[tex] \text{step \: 3 \: : Calcular}[/tex]

[tex] \hookrightarrow{ \sf{k = - 9}}[/tex]

[tex] \text{el valor de k es - 9}[/tex]

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

Translation in English:

Step 1 : Swap the sides of the equation

Step 2 : Divide both sides by 14

Step 3 : Calculate

[tex] \sf{Hope \: i \: helped ! }[/tex]

[tex] \sf{Best \: regards !!}[/tex]

~[tex] \sf{TheAnimeGirl}[/tex]

Can you put that in English please thanks.

2m - n =8 Solve for n

Answers

Answer:

[tex] \boxed{\sf n = 2m - 8} [/tex]

Step-by-step explanation:

Solve for n:

⇒2m - n = 8

Subtract 2 m from both sides:

⇒2m - 2m - n = 8 - 2m

2m - 2m = 0:

⇒-n = 8 - 2 m

Multiply both sides by -1:

⇒-n × (-1) = (8 - 2m) × (-1)

⇒n = 2m - 8

The required value of n is equal to n = 2m - 8.

An expression is given in the question ; i.e., 2m - n = 8.

We have to find the value of the 'n' .

What is algebra ?

Algebra is the branch that deals with various symbols and the arithmetic operations such as addition , subtraction , etc.

As per the question ;

The given expression is 2m - n = 8.

Let's solve it to get the value of n.

The value of n can be find out , if we bring n to the left side of equal sign and 8 to the right of equal sign.

So ,

2m - n = 8 can be written as ;

2m = 8 + n

or

n = 2m - 8

Thus , the required value of n is equal to n = 2m - 8.

To learn more about algebra click here ;

brainly.com/question/26479183

#SPJ2

simplify 3x+6=18, please

Answers

Answer:

x = 4

Step-by-step explanation:

Step 1: Write out equation

3x + 6 = 18

Step 2: Subtract 6 on both sides

3x = 12

Step 3: Divide both sides by 3

x = 4

Answer:

4

Step-by-step explanation:

3x +6 =18

3x =18 - 6

3x =12

x =12 :3

x =4

Translate the following into a verbal expression 3(4-x)+7

Answers

Answer:

3 times 4 minus a number, plus 7

3(4 - x) + 7

these days more and more appliances are talking to each other and with the internet. How will all this talk help in the development of AI systems​

Answers

Answer:

please mark brainliest!

Step-by-step explanation:

The internet today is driven by smartphones, tablets, and personal, given in the system Explanation, AI makes the appliances talk to each other by decoding.

which is longer 5 miles or 5 kilometers?​

Answers

Answer:

im pretty sure its kilometers

5 miles should be the answer

3x - 6 = 2(x + 4). find the value

Answers

3x -6 = 2(x + 4)
Multiply x by two and 4 by 2 to get
3x - 6 = 2x + 8
You want the x to be alone on one side so you add six on both sides to get rid of it to get:
3x = 2x + 14
You still don’t have just one x and it isn’t alone on one side, so you subtract 2x from both sides and get
x = 14

Solve.
1) (-85) ÷ 20 =
2] 100 ÷ 60 =​

Answers

[tex] - 85 \div 20 = - 4 \frac{1}{4} = - 4.25[/tex]

[tex]100 \div 60 = \frac{5}{3} = 1 \frac{2}{3} [/tex]

Determine if each set of ordered pairs represents a function.

Answers

Answer:

h is the a

Step-by-step explanation:

Together a refrigerator and a desk cost $216. Find the price of each if the refrigerator costs three times as much as the desk

Answers

Refrigerator 162$ and desk cost 54

Step-by-step explanation:

Cost of refrigerator and desk =$2163x+x=2164x=216x=216/4x=54now, Cost of refrigerator = 3x = 3*54 = 162

Please help me this is due in 20min please!!! i’m suppoes to make a graph of that... please someone.

Answers

Answer:

im assuming this is what you mean considering the little information given.

Step-by-step explanation:

what do I do this is my lat question and I forgot how to do this

Answers

Multiple the number outside the (*) by both numbers within and then solve for each side.
Perimeter is all the sides added up together, so we would set this up like this:

P = (x) + 2(x+5) + 6(x-1) + 3(x+2)

You should know how to solve it from there, but this is the answer, hope it helped!

is it possible to build a triangle with side lengths of 5, 5, 10

Answers

no, the sum of the lengths of any two triangle must be greater the the length of the third side .

What is your dream car

Answers

Answer:

Toyota like my mom hajaha

Either a Ford like my dad or a Audi like my aunt lol

write a word phrase for
[tex] - 5 - 4n[/tex]

Answers

-5: negative five

-: minus

4n: a number times four

Put everything together.

Negative give minus a number times four.

Best of Luck!

NEED HELP ASAP!!!
TEN POINTS!

Answers

The answer it’s letter D

Joes mother gave him 1/3 of the money in her purse. His father gave him 5.00. If they gave joe a total of 12.00, How much money did his mother have in her purse. Joes mother had $ money in her purse (Enter a number only and make sure to include the decimal and 2 numerical decimal places.)

Answers

Answer:

$21

Step-by-step explanation:

let the money in her purse be $x

1/3 of the money is 1/3x

Since his father gave him $5 and the total amount became $12

the expression for the total amount would be

12= 1/3x+5

We can now solve for x

12-5= 1/3x

1/3x= 7

cross multiply we have

x= 7*3

x= $21

Therefore the money in joes mother's purse is $21

Give two real-world situations that could be represented by the value 30

Answers

Answer:

There are lot of real world situations that could be represented by the value of 30.

Step-by-step explanation:

1- I went to a office for interview they said to me they will give 30$ as a salary per day.

2- I went to a shop and bought a cofee box. shopkeeper demanded me 30$ for it.

These are the best examples of real-world situations that could be represented by the value 30

Answer:

here this is so u can give brainliest to him

Step-by-step explanation:

HELP ME PLESA IM DESPO PAKJDCD PLS HELP

Answers

Answer:

144 cm²

Step-by-step explanation:

A prism's surface has 2 triangles & 3 rectangles.

In both the triangles , length of :

Perpendicular = 4 cm

Base = 6 cm

So , Area of both triangles = [tex]2(\frac{1}{2} * Base * Perpendicular) = 2(\frac{1}{2}* 6 * 4) = 24 cm^2[/tex]

In the 3 rectangles ,

Length = 8 cm

Width = 5 cm

So , Area of the rectangles = [tex]3( Length * Width) = 3(8 * 5) = 120 cm^2[/tex]

Hence the total surface area of the prism is = 120 + 24 =144 cm²

evaluate 2x^2-3x+6 for x=4 ​

Answers

Answer:

999

Step-by-step explanation:

99l

Answer: 26

Step-by-step explanation:

x is equal to 4 so we will input 4 into the expression for x and solve.

2(4)^2 - 3(4) + 6

2(16) - 12 + 6

32 - 12 + 6

32 - 6 = 26

Rectangle PQRS will be reflected over the y-axis. What will be the coordinates of Q'M​

Answers

Answer:

Coordinates for Q' Option (A) : (-5, 2)

integrate x^2+5 please i need it fast

Answers

Answer:

[tex]\frac{1}{3}[/tex] x³ + 5x + c

Step-by-step explanation:

Using the power rule

∫ a[tex]x^{n}[/tex] dx = [tex]\frac{a}{n+1}[/tex] [tex]x^{n+1}[/tex]

Thus

∫ x² + 5 dx

= [tex]\frac{1}{3}[/tex] x³ + 5x + c ← c is the constant of integration

Please how to do this ​4−(3−5)= ​​

Answers

Answer:

Well, subtract 3 and 5 first, you get 2, then subtract 4-2. you get 2.

Step-by-step explanation:

(3-5) = 2

4-2=2

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