what is the solution to this system of equations? 2x + y = -12 3x - 4y = 5

Answers

Answer 1

Answer:

=-4

Step-by-step explanation:


Related Questions

Which of the following is a transformation of the graph y = (x - 5)^2?

A.Shifts down 5.

B.Shifts right 5.

C.Shifts left 5.

D.Shifts up 5.​

Answers

Answer: B. Shifts right 5


Explanation:

When the number after the variable is in the parentheses, the transformation will be opposite of the sign. In this problem, the sign for 5 is negative so you would be going right 5 units because right is positive so that would be the opposite of the sign.

Answer:

hiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

What is the slope of line a?
THIS IS A TEST AND MY GRADE IS ALR BAD ENOUGH PLS ANSWER CORRECTLY

Answers

Answer:

you forgot to put the attachment so we can see the line....

We can’t answer without a the picture

After a robot vacuum is fully charged, it can run for 15 minutes. It can vacuum 1/2 square foot every second. Can a fully charged robot clean a room that is 400 square feet without recharging?

Answers

Answer:

The robot can clean the room without recharging.

Step-by-step explanation:

Given:

After a robot vacuum is fully charged, it can run for [tex]15[/tex] minutes.

The robot cleans [tex]\frac{1}{2}[/tex] square foot every second.

To find: If the charged robot can clean a room that is [tex]400[/tex] square feet without recharging.

Solution:

Area cleaned by the robot in [tex]1[/tex] second [tex]=\frac{1}{2}[/tex] square foot.

We know that, [tex]1[/tex] minute [tex]=60[/tex] seconds.

So, [tex]15[/tex] minutes [tex]=15\times 60=900[/tex] seconds.

Now, area cleaned by the robot in [tex]900[/tex] seconds [tex]=\frac{1}{2} \times 900=450[/tex] square feet.

The area to be cleaned is [tex]400[/tex] square feet.

Hence, the robot can clean the room without recharging.

Can somebody help me??

Answers

the missing number i think is -27

Sasha grew 36 plants with 9 seed packets. How many total seed packets does Sasha
need if she wants to have 76 plants in her backyard in all? Solve using unit rates.
seed packets

Answers

Answer:

10 more seed packets.

Step-by-step explanation:

36/9=4 so there are 4 seeds in each packet. If she already has 36 plants, she only need 40 more to get the 76 she wants. 40/4=10 so she needs 10 more seed packets.

please help me

20. Multiply: 2x (3x^2 - 5x - 3)

21. Divide: 14m^1 - 28m^8 ÷ 7m/ 7m

Answers

I think you might have wrote the second question wrong but here’s the answer according to the given questions:

Jeremy lost his dog, and wants to make some signs to put up in the neighborhood. The cost to make 8 paper signs and 2 laminated signs is $12.00. The cost to make 10 paper signs and 10 laminated signs is $30.00. What is the cost of 1 laminated sign?

Answers

Answer:

cost to make paper signs = $1

cost to make laminated signs = $2

Step-by-step explanation:

Let

x = cost to make paper signs

y = cost to make laminated signs

8x + 2y = 12 (1)

10x + 10y = 30 (2)

Multiply (1) by 5

40x + 10y = 60 (3)

10x + 10y = 30 (2)

Subtract (2) from (3) to solve for x

40x - 10x = 60 - 30

30x = 30

x = 30/30

x = $1

Substitute x = 1 into (1)

8x + 2y = 12

8(1) + 2y = 12

8 + 2y = 12

2y = 12 - 8

2y = 4

y = 4/2

y = $2

cost to make paper signs = $1

cost to make laminated signs = $2

Which answer describes the type of sequence?
3, 4, 5, 6, ...


geometric


neither arithmetic nor geometric

arithmetic

Answers

Answer:

arithmetic

Step-by-step explanation:

an arithmetic sequence is when you add or minus the same number

Answer:

the answer to this question is that the sequence is arithmetic sequence

Step-by-step explanation:

because the difference between the consecutive terms is consecutive terms is constant that sequence is arithmetic sequence. And is the sequence the numbers are increasing with +1 increment.

What is the sign of 45 + (-38)

Answers

Answer:

A) POSITIVE

Step-by-step explanation:

45 +(-38)

Will become

45-38

= 7

2(x/8 + 3) = 7 + 1/4x what is x

Answers

Answer:

x1 = 2 -[tex]\sqrt{5}[/tex]

x2= 2 +[tex]\sqrt{5}[/tex]

Step-by-step explanation:

x/4 + 6 = 7 + 1/4x

(x^2 - 1)/4x = 1

x^2 - 1 = 4x

x^2 - 4x -1 = 0

x= (4+[tex]\sqrt{20}[/tex])/2 = 2 -[tex]\sqrt{5}[/tex]

x= 2 +[tex]\sqrt{5}[/tex]

n^2+7 at n= -3 help!

Answers

Answer:

16

Step-by-step explanation:

To solve plugin -3 for n

[tex]-3^2+7[/tex]

Then, solve using PEMDAS. First, do exponents

[tex]-3^2+7=9+7[/tex]

Next, add

[tex]9+7=16[/tex]

So, 16 is the final answer.

(1 + 5) + 9 = 15 another way to right this

Answers

6+9=15

(1+5)+9=15

6+9=15

Hope it helped

Answer: 1x6+9=15 or 15x1 or 6+9=15 or 5x3=15

Step-by-step explanation:

Fran prepared 200.2 grams of dough. How much dough did she use measured in ounces?

Answers

Answer:

7 ounces

Step-by-step explanation:

1,329.8 to 1 decimal place

Answers

Answer:Here you can enter any number with as many or as few decimal places as you want, and we will round it to the nearest one decimal place. Please enter your

Step-by-step explanation:

FRAME AN EQUATION AND SOLVE
the length of a rectangle is 3cm more than its breath and its perimeter is 34cm.Find the length and breath of the rectangle​

Answers

Here
Length = x+3
Breadth = x
We know
Perimeter of reatangle = 2(l+b)
Or 34 = 2( x+3+x)
Or 17 = 2x+3
Or 14 =2x
Or x= 7

Therefore
Length = 10 and breadth = 7 cm
Thank you
From ayanas

An airplane on autopilot took 6 hours to travel 4,200 kilometers. What is the unit rate for kilometers per​ hour?

Answers

Answer:

59

Step-by-step explanation:

Its easy

show all work please
[tex] \frac{7r}{2} \div \frac{ {14r}^{2} }{3} [/tex]

Answers

Answer:

3 / 4r

Step-by-step explanation:

Simplify : 7r/ 2 ÷ 14r²/3

7r/ 2 ÷ 14r²/3

Changing the ÷ sign to multiplication :

Multiply 7r/2 by the reciprocal of the denominator :

7r/ 2 * 3/14r²

((7 * r) / 2) * (3) / 14 * r * r

= 3 / 4r

For clarity, kindly check attached picture for detailed simplification.

Factor Completely 8y^2+14y+3​

Answers

Answer:

(4y+1)(2y+3)

Explanation:

Factor 8y^2 + 14y + 3

8y^2 + 14y + 3

= (4y + 1)(2y + 3)

6: REDUCE to simplest term. 4/1 + 15/2​

Answers

Answer:

[tex]\frac{4}{15}+\:\frac{1}{2}[/tex] in the simplest term is:

[tex]\frac{4}{15}+\frac{1}{2}=\frac{23}{30}[/tex]

Step-by-step explanation:

Given the expression

[tex]\frac{4}{15}+\:\frac{1}{2}[/tex]

Thus, solving to reduce to the simplest term

[tex]\frac{4}{15}+\frac{1}{2}[/tex]

LCM of 15, 2: 30

Adjusting fraction based on the LCM

so the expression becomes

[tex]\frac{4}{15}+\:\frac{1}{2}=\frac{8}{30}+\frac{15}{30}[/tex]

Apply the fraction rule:      [tex]\frac{a}{c}+\frac{b}{c}=\frac{a+b}{c}[/tex]

            [tex]=\frac{8+15}{30}[/tex]

Add the numbers: 8+15 = 23

            [tex]=\frac{23}{30}[/tex]

Therefore, [tex]\frac{4}{15}+\:\frac{1}{2}[/tex] in the simplest term is:

[tex]\frac{4}{15}+\frac{1}{2}=\frac{23}{30}[/tex]

somebody help me i will mark you has brainlist

Answers

Answer:

Salt

Step-by-step explanation:

At its peak, Ghana was chiefly bartering gold, ivory, and slaves for salt from Arabs and horses, cloth, swords, and books from North Africans and Europeans. As salt was worth its weight in gold, and gold was so abundant in the kingdom, Ghana achieved much of its wealth through trade with the Arabs.

Hope this helps!

Brain-List?

Ok but listen to streets by doja cat and vibeU-U

Answers

Answer:

aNd?

tHeREs mORe..

Step-by-step explanation:

20 POINTS!!!

0.6x = 2.8
show your work

Answers

Hey there!

[tex]\bold{0.6x = 2.8}[/tex]

DIVIDE by [tex]\bold{0.6}[/tex] on BOTH SIDES[tex]\bold{\dfrac{0.6x}{0.6}=\dfrac{2.8}{0.6}}[/tex]CANCEL out: [tex]\bold{\dfrac{0.6}{0.6}}[/tex] because it gives you [tex]\bold{1}[/tex]KEEP: [tex]\bold{\dfrac{2.8}{0.6}}[/tex] because it helps us solve for [tex]\bold{x}[/tex]Solve above and you’ll have your answer![tex]\boxed{\bold{Answer: x = 4.67}}\checkmark[/tex]Good luck on your assignment and enjoy your day!~[tex]\frak{LoveYourselfFirst:)}[/tex]

Adding cheese to a McDonald's Quarter Pounder increases the fat content from 21 g to 30 g. What percent does the fat content increase

Answers

Answer: 42.9%

Step-by-step explanation:

The percentage increase of the fat content will be calculated as:

= Fat increase / Previous fat content × 100

= (30 - 21) / 21 × 100.

= 9/21 × 100

= 42.9%

Wayne has a recipe that says to heat the oven to 160°C. Wayne evaluates the expression 1.8C + 32 when C= 160 to convert the temperature to degrees Fahrenheit To which temperature should Wayne heat the oven?​

Answers

Answer: The answer is 320 degrees F.! :)

Step-by-step explanation:

Anya is spinning a big arcade wheel can make 1 revolution in 0.6 minute how many revolution can the wheel make in the 10.8 minute

Answers

Answer:

18

Step-by-step explanation:

10.8/0.6=18

could you help me quick!?

Answers

Answer:

1: 5                       2: -70.98  3: C   4:A.     5:A

Step-by-step explanation:

Help asap??!!?!?!.....................................!

Answers

8x8/7 answer true butty they’re

Plz help me get the right answer

Answers

Answer:

6x^2 + 10x -1 and -5x^2 -2x + 1

6x^2 -5x^2 = x^2

+10x -2x = +8x

-1 +1 = 0

answer:

x^2 + 8x

A snail crawls 24 inches in 8 minutes.
What is the unit rate of the snail's movement?

Answers

The unit rate of the snail's movement is 3 inches per minute.

Unit rate:

Important information:

A snail crawls 24 inches in 8 minutes.

We need to find the unit rate.

Divide the distance by time to find the unit rate.

[tex]\text{Rate}=\dfrac{24}{8}[/tex]

[tex]\text{Rate}=3[/tex]

Therefore, the unit rate of the snail's movement is 3 inches per minute.

Find out more about 'Unit rate' here:

https://brainly.com/question/113969

what is 25% of 50⇒ФФФФФФФ⇒⇒⇒

Answers

I think that right answer


Is 7.5
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