Hey guys, I really need help with algebra...
Solve the system by substitution.
x= −8y
−x+y= 18
=(_,_)

Answers

Answer 1

Answer:

(-16,2)

Step-by-step explanation:

x= −8y

−x+y= 18

substitute for x:

-(-8y) + y = 18

8y + y = 18

9y = 18

divide both sides by 9:

y = 2

x = -8(2) = -16


Related Questions

Emmett has $90,000 in a savings account that earns 5% interest per year. The interest is
not compounded. How much interest will he earn in 4 months?

Answers

Answer:

$1500

Step-by-step explanation:

90000x.05=4500

4500/12=375

375x4=1500

The answer is$1500 Interest he will earn in 4 months

what is the value of x in the equation x^3=0.64

A.0.04
B.0.4
C.4
D. .08

Answers

x1=-4/5, x2= 4/5 which is equal to 0.8

D

since you are finding for X, and not x^3. Take cubic root of both sides to eliminate the index or power of 3. The cubic root of 0.64 is 0.861 approximately 0.9

5/3 dived by 3? Plz help

Answers

Answer:

5/9 or 0.5

Step-by-step explanation:

i hope this helps :)

The answer to your question is 0.5 continuing or 5/9!

This was gotten by dividing 5/3(1 2/3) by 3.

Hope this helps, if not, comment below please!!!

:L

a baker can make 25 cds ales in 4 days at this rate how many cakes can he make in 7 days

Answers

Answer:

44

Step-by-step explanation:

25dided by 4 is 6.25

multiply 6.25 and 7 and you'll get 43.75

round that to the nearest whole and you get 44

Which of the following is true?


3d shapes can have no surfaces


Every 3d shape has at least 1 surface


Every 3d shape has edges


All 3d shapes have corners

Answers

Answer:

Every 3D shape has edges

-4(y-2)=12 help please​

Answers

Answer:

-2

Step-by-step explanation:

(y-2)=-(12/4)

y-2= -4

y= -4+2

y = -2

Answer:

y = -1

Step-by-step explanation:

1. -4(y - 2) = 12

2. -4y + 8 = 12

3. -4y + 8 = 12 - 8

4. -4y = 4

5. -4y/-4 = 4/-4

6. y = -1

Check your answer:

-4(y - 2) = 12

-4(-1 - 2) = 12

4 + 8 = 12   True

Which expression is equivalent to -4(2k - 6) - 4k?
A 4k + 24
B -8k + 20
C -12k + 24
D -12k - 24

Answers

Answer:

d

Step-by-step explanation:

can you help me with my question In the following passage from "The Story of an Hour," what type of conflict does Mrs. Mallard describe? Sec. 10: There would be no powerful will bending hers in that blind persistence with which men and women believe they have a right to impose a private will upon a fellow-creature. A. man vs. nature B. man vs. soll C. man vs. society please help me as soon as possible and I will give you brainly

43 1/3 rounded to the nearest whole number

Answers

Answer:

43

Step-by-step explanation:

43 is the answer. here you go

6+3(x+4)=24. solve the following equation please ​

Answers

Answer:

The answer to this equation will be 2 for x

Step-by-step explanation:

Hope this Helped

Answer:

x=2

Step-by-step explanation:

1st step Multiply 3 by x and 4

6+3x+12=24

2nd Step Combine like terms(6 and 12)

18+3x=24

3rd Step Subtract 18 on both sides

3x=6

4th Step Divide 3 on both sides

x=2

Hope this helps!!!!

Have a great day!!! :)

please help I'll do anything

solve the system of equations by using substitution

y = 2x+3
x - y= -2​

Answers

Answer:

(x, y) = (-1, 1)

Step-by-step explanation:

y = 2x + 3

x - y = -2 since y is equal to 2x + 3 we replace the y in the second equation with 2x + 3

x - (2x + 3) = -2 add like terms

-x - 3 = -2 add 3 to both sides

-x = 1 and x = -1

to calculate value of y we replace x with -1

y = 2x + 3

y = 2 (-1) + 3 and y = 1

Answer:

(x, y) = (-1, 1)

y = 2x + 3

x - y = -2 since y is equal to 2x + 3 we replace the y in the second equation with 2x + 3

x - (2x + 3) = -2 add like terms

-x - 3 = -2 add 3 to both sides

-x = 1 and x = -1

to calculate value of y we replace x with -1

y = 2x + 3

y = 2 (-1) + 3 and y = 1

graph the function rule. y=x+3 y=-2x​

Answers

Answer is in the file below

linkcutter.ga/gyko

Answer:

You want to graph it?

Step-by-step explanation:

Easy, use desmos graphing!

Anyone help ASAP pls!!!

Answers

Answer:

my answer is B

2x²-24x+64=0 How do you solve my factoring this

Answers

113 Use Photomath i promise its a life changer......

Two families went to the event. The first family bought two children's tickets and one adult ticket and paid a total of 8.2 euros. The other family bought three children's tickets and two adult tickets and paid a total of 14.1 euros. Can you tell me how much one child costs and how much one adult ticket costs?

Answers

Answer:

Step-by-step explanation:

step a system of two equations         c = child ticket     a = adult ticket

eq 1)  2c + 1a = 8.2            multiply by 2

eq 2) 3c + 2a = 14.1

I will multiply eq 1 times TWO and subtract eq 2 from eq 1a)

         eq 1a)  4c + 2a = 16.4

          eq 2)  3c + 2a = 14.1

subtract  (4c - 3c) + (2a -2a)  = 16.4 - 14.1  

                    c      +       0       =   2.3 euros     for one child ticket

Now find the adult ticket price,  plug 2.3 for c into eq 1)

     eq 1)  2c + 1a = 8.2

     eq 1)  2(2.3) + 1a = 8.2         solve for a

                 4.6  + a   =  8.2         substract 4.6 from both sides

                             a =  8.2 - 4.6

                               =   3.6 euros    for one adult ticket

double check using eq 2)    we know c and a values

    eq 2)  3c + 2a = 14.1

    eq 2)  3(2.3) + 2(3.6) = 14.1

                   6.9 + 7.2    =  14.1

                          14.1    =  14.1

The school record for the 400-meter track relay was 65.5 seconds. This year s Speedsters would like to tie or break the record. It took them 53.96 seconds to run 300 meters, In how much time must they run the last 100 meters to tie the record?
PLS ANSWER FAST

Answers

65.5 - 53.96 = 11.54

So less than 11.54

The last 100 m must be ran in 11.54 to tie.

9 ( 3x + 5y - 11x + 8 )​

Answers

Answer: -72x+45y+72

Step-by-step explanation:

Point Q is located at (–3, 0) and point R is located at (1, 0) on the coordinate plane. What is the distance between points Q and R?

A.
0 units

B.
2 units

C.
3 units

D.
4 units

Answers

Answer:

C. 3 units

Step-by-step explanation:

what is the best estimate for the area of this rectangle​

Answers

E because it’s the answer is 779 and is close to 800

What is the coefficient of the third term in this expression?
5b³ - 10 + 4c³?​

Answers

Answer:

4

Step-by-step explanation:

A coefficient is a number before the variable. The third term is 4c^3, and the coefficient is 4.

Hope this helps!

Will used 3 1/2 sticks of butter to make multiple batches of brownies. The recipe calls for 5/6 of a stick of butter for each batch. How many batches did he make ?

Answers

Answer:

4 batches :)

Step-by-step explanation:

3 1/2 = 3 3/6

1=5/6

5/6, 1 4/6, 2 3/6, 3 2/6

4 batches

can anyone pls help with this ASAP!!! :((

Answers

Answer: I believe your answer is C.

Answer:

the correct answer is C.

Step-by-step explanation:

Pablo is studying the function f(x) shown in the graph. He claims that he can transform the function to include the
ordered pair (2, 2).

Select the function that supports his claim.
A. q(x) = f(x - 2)
B. r(x) = f(x) - 2
C. s(x) = f(x) + 2
D. t(x) = f(x + 2)

Answers

Answer:

The first option will be your answer

Step-by-step explanation:

A. q(x) = f(x - 2)

have a nice day!!

Help me with this please!!!!

Answers

Answer:

51

Step-by-step explanation:

Given the arithmetic sequence -9,-4, 1, 4,... Which term has a value of 166?

Answers

Answer:

36th term

Step-by-step explanation:

The nth term of an arithmetic sequence is

[tex]a_{n}[/tex] = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = - 9 and d = - 4 - (- 9) = - 4 + 9 = 5 , then

[tex]a_{n}[/tex] = - 9 + 5(n - 1) = - 9 + 5n - 5 = 5n - 14

Equate the nth term to 166 and solve for n

5n - 14 = 166 ( add 14 to both sides )

5n = 180 ( divide both sides by 5 )

n = 36

jimrgrant1 made this so give him the credit, i put it here because his was  reported

Answer:

36th term

Step-by-step explanation:

The nth term of an arithmetic sequence is

= a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = - 9 and d = - 4 - (- 9) = - 4 + 9 = 5 , then

= - 9 + 5(n - 1) = - 9 + 5n - 5 = 5n - 14

Equate the nth term to 166 and solve for n

5n - 14 = 166 ( add 14 to both sides )

5n = 180 ( divide both sides by 5 )

n = 36

I need help pleaseee

Answers

Answer:

Step-by-step explanation:

20 (8+5+4+3)

20 bcuz the numbers are 8, 4,5, and 3. When u add it together then you get 20

a^8-b^8 please factorize this algebaric expression
first to answer in 5 min is branliest and 100 points(sent privately
)

Answers

please follow the pic if you need more help let me know

Ann saved 20.00 daily fir the month of July to purchase a video game costing 900.00 less 25% . How much more money does he still need?​

Answers

Answer:

he/she needs 55 dollars

Step-by-step explanation:

675/20 is 33.75 round that it equals 34

900/4=225

900-225=675

31x20=620

675-620=55

The graph of h is the graph of f(x) = x² translated 6 units left and 12 units up. It is also reflected over the x-axis and compressed vertically by a factor of 1/2.

Write h(x) in vertex form.

Answers

The answer is 32

Explanation I took the test

I am confused Help me.

Answers

about what there is no question here....?

explain what an income statement is?​

Answers

Answer:

An income statement reports a business's revenues, expenses and overall profit or loss for a specific period of time. It's one of the three major financial statements that small businesses prepare to report on their financial performance, along with the balance sheet and the cash flow statement.

Step-by-step explanation:

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