x = 16 - 4y
3x + 4y =8
substitution method

Answers

Answer 1

Answer:

i think x = -4, y = 5

Step-by-step explanation:

x = 16 - 4y

3x + 4y = 8

3(16 - 4y)+4y = 8

48-12y+4y = 8

48-8y = 8

48-8 = 8y

40 = 8y

5 = y

so

x = 16 - 4y

x = 16 - 4(5)

x = 16 - 20

x = -4


Related Questions

ok the other one did not work so what 10 + 10 × 10 + 10 ÷ 10

Answers

Answer:

111

Step-by-step explanation:

it is correct 10 + 10 × 10 + 10 ÷ 10= 111

mark as brainliest

HI CAN YOU PLEASE HELP ME

Answers

Answer:

11 C

12 D

13 B

14 E

15 A

Step-by-step explanation:

pure definition case. there is nothing to solve, and not really anything to explain in addition to the assigned texts.

Enter the explicit rule for the geometric sequence ...
60, 12, 12/5, 12/25, 12/125

Answers

Answer:

an = 60 x 1/5^n-1

Step-by-step explanation:

correct me if i am wrong, but I just learned about this stuff so hopefully this helps. The explicit rule/formula is an = a1 x r^n-1. In this formula, a1 is the first term (60), and r is the common ratio (1/5). Now all that is left to do is to write the equation which would be 60 x 1/5^n-1.

Assume that you are going to open a checking account. You are examining different banks and banking accounts to choose a bank account for your needs. Which of the following statements should not be one of your reasons for examining different banks?

a. Being more informed leads to being better prepared to make financial decisions

b. Bank E offers you a chocolate bar for filling out an application for checking and credit at the same time.

c. Banks could have charges that you do not know about until reading carefully.

d. You will become more aware of how well the banks meet your particular needs.

Answers

Answer:the answer is b

Step-by-step explanation:

i took the test

Which expressions are equivalent to -2(2h+10)+4h

Answers

-4h-20+4h
combine like terms that equals zero
so 20 is your answer

Who are the two children that clung to the Ghost of Christmas Present? What do they symbolize?

Answers

Answer:

Ignorance and Want

Step-by-step explanation:

Igorance and Want symbolizes the poor in the 19th century. PS: I hope this helps

Answer:

The boy is ignorance and the girl is want, in my opinion (you may have a different take on this) they symbolize the poor. Throughout the novella, we have seen the good side of the poor through the Cratchints who work hard day in day out, and now Dickens is wanting to show how malnourished the poor really is. It can also show how Dickens is saying that if the government doesn't act and help out the poor as well as everyone else, this is what the future for the poor will look like, malnourished and uneducated. It is showing us the consequences of being basically abandoned from society in general, abandoned by the education system, and again, I think that Dickens here is trying to show the consequences of the abandonment of the poor and how the government and the rich should change their ways to stop that from happening by being kind and charitable ect.

What 5 coins add up to 38 cents? Explain how you solved it.

Answers

Answer:

3 dimes (10c each), a nickel (5c), and 3 pennies (1c each)

Step-by-step explanation:

10+10+10+5+1+1+1 = 38

Hope that helps.

In ΔMNO,
m

M
=
(
6
x
+
1
)

m∠M=(6x+1)

,
m

N
=
(
3
x

10
)

m∠N=(3x−10)

, and
m

O
=
(
x
+
19
)

m∠O=(x+19)

. Find
m

N
.
m∠N.

Answers

Answer:

Step-by-step explanation:

All the angles in a triangle add up to 180°

So you need to add up all your angles and set them equal to 180°

angleM + angleN + angleO=180

(6x+1) + (3x-10) + (x+19)= 180

We don't actually need all these parentheses; this is all just addition and subtraction.

6x+1+3x-10+x+19 =180

Add all the x terms together. Add all the constants (plain numbers) together.

10x + 10 =180

Subtract 10 from both sides

10x =170

Divide by 10.

x = 17

But you need one more step because if you reread the question, you are being asked for the measure of angle N, which is 3x - 10

3*17 - 10 =

51 - 10 =

41

The measure of angle N is 41°

Solve if x is equal to 4. y = 2x

Answers

the answer is 8
if x=4 then the equation would be y=2(4)
2(4)=8

4 + 5 = 5 + 4
Is it true or false

Answers

Answer:

it depend on the question but if it is asking if they have the same answer then it is true

Step-by-step explanation:

Answer: false

Step-by-step explanation: 4+5=9 5+4=-9

55) Carl spent 25% of his money for some presents. What percent
did he have left?

Answers

Answer:

75%

Step-by-step explanation:

In total it was 100%, but he spent 25%.

100% - 25%=75%

Is
(
x
+
1
)
a factor of the function
f
(
x
)
=
7
x
4

5
x
3

10
x
2
+
2
x
, and why?

Answers

Answer:

It is the first answer choice.

Step-by-step explanation.

Use synthetic division and there is no remainder, so -1 is a factor

On a field trip, there were 5 girls for every 8 boys how many girls attended the 130-student field trip?

Answers

Answer:

5 / 13 is the fraction of girls on the field trip

5/13 * 130 = 50 girls on the trip

Or 10 groups of 13 and each group of 13 had 5 girls giving a total of

5 * 10 = 50 girls

Robin currently has 50 subscribers on her You Tube channel, and Dimitri currently has 17 subscribers. Robin gains 4 subscribers every week, while Dimitri gains 7 subscribers each week.
Part A: Set up a system of equations to shows each person's subscribers. (2 points)
Part B: After how many weeks will Robin and Dimitri have the same number of subscribers? (1 point)
Part C: How many subscribers will Robin and Dimitri have when their subscriber count is equal? (1 point)

Answers

We want to write and solve a system of equations to model the given situation.

The answers are:

A)

y =  50 + 4*x

y = 17 + 7*x

B) after 11 weeks.

C) 94 subscribers.

First, we must find the two linear equations, we know that Robin has 50 subscribers and she gets another 4 per week.

Then for Robin, we can write:

y = R(x) = 50 + 4*x

The equation that models the number of subscribers that Robin has at week x.

Dimitri at the moment has 17 subscribers and wins 7 per week, then his equation is:

y = D(x) = 17 + 7*x

A) Then the system of equations is just:

y =  50 + 4*x

y = 17 + 7*x

B) Now we must solve the system.

Notice that in both equations we have y isolated, then we can write:

50 + 4*x = y = 17 + 7*x

50 + 4*x =17 + 7*x

Now we can solve this for x:

50 + 4*x =17 + 7*x

50 - 17 = 7*x - 4*x

33 = 3*x

33/3 = 11 = x

This means that at week 11 they will have the same number of subscribers.

C) To get this we just need to evaluate any one of the two linear equations in x = 11

D(11) = 17 + 7*11 = 94

Both of them will have 94 subscribers.

If you want to learn more about systems of equations, you can read:

https://brainly.com/question/13984867

F(x) = 3x2+ 6x - 18 find f (10)

Answers

Answer:

f(10) = 342

Step-by-step explanation:

f(x) = 3x² + 6x - 18

f(10 = 3(10)² + 6(10) - 18

f(10) = 3(100) + 60 - 18

f(10) = 300 + 60 - 18

f(10) = 360 - 18

f(10) = 342

What is the least positive integer which when divided by 5 gives a remainder of 4, when divided by 6 gives a remainder of 5, when divided by 7 gives a remainder of 6, when divided by 8 gives a remainder of 7, when divided by 9 gives a remainder of 8, and when divided by 10 gives a remainder of 9

Answers

Answer:

  2519

Step-by-step explanation:

In each case, the remainder is 1 less than the divisor. This means the number of interest will be 1 less than the least common multiple of 5, 6, 7, 8, 9, 10.

The prime factors of these numbers are ...

  5 = 5

  6 = 2·3

  7 = 7

  8 = 2³

  9 = 3²

  10 = 2·5

The unique factors are 2, 3, 5, 7. When they are used to their highest powers, the resulting product is ...

  2³·3²·5·7 = 2520

The number of interest is 1 less than this, so is 2519.

2519 is the least positive integer that will give the required remainders.

1/2x + 4 = 3 (x - 1/3) what is the solution

Answers

Answer:

x = 1.76129406    

x=0.09462739

Step-by-step explanation:

solve similar triangles (advanced)

Answers

Answer:

x = 5

Step-by-step explanation:

Thales' theorem

[tex]\frac{9}{3} =\frac{15}{x}[/tex]

[tex]x=\frac{(15)(3)}{9} =\frac{45}{9} =5[/tex]

hope this helps

y = 6x - 4 when x = -7

Answers

Answer:

It's - 28

Step-by-step explanation:

6*-7=-42-4=-28

Answer:

y is -46

Step-by-step explanation:

y= 6x -4 ....means

y =6 *x -4......so replace x with -7

y = 6*-7 -4

y=-42 -4

y= -46

You are going to a private apple orchard to pick apples. There is a one-time entry fee that everyone pays, and you also pay a certain amount per pound of apples you pick. It costs $46 to buy 5 pounds of apples, and it costs $58 to buy 7 pounds of apples.

Answers

The one-time entry fee is $6 and the price per pound is $4.

In order to determine the one time entry fee and the cost to pick an apple per pound, two equations would be formed from the question:

x + 5y = 46 equation 1

x + 7y = 58 equation 2

Where:

x = one-time entry fee

y = price per pound

In order to determine the value of y, subtract equation 1 from 2

2y = 12

y = 12 / 2  = 6

In order to determine the value of x, substitute for y in equation 1:

x + 5(6) = 46

x + 30 = 46

x = 40 - 36

x = 4

For more information, please check: https://brainly.com/question/25802822

34z+6= i dont know how to simplify it

Answers

34z divided by 6= 5.6z

PLEASE ANSWER THIS !!!
m>17.2
What word sentence represents this inequality?

3: A number is less than 17.2
2: A number is greater than 17.2
1: A number is at most 17.2

Answers

Answer:

2. "a number is greater than 17.2"

Step-by-step explanation:

m > 17.2 can be read by saying "the number m is greater than the number 17.2" which also can be read as 2. "a number is greater than 17.2"

The graph of part of linear function g is shown on the grid.

Which inequality best represents the domain of the part shown?

Answers

Answer:

F

Step-by-step explanation:

open circle at (-9,3) means the symbol must be either < or >

closed circle at (2,-6) means the symbol must be either ≤ or ≥

the x-values of each ordered pair above represent the domain {-9 and 2}

im stumped on this question. please help:)​

Answers

Answer:

(-2,6)

Step-by-step explanation:

the actual solution to the system of equations is (-(64/27),(56/9)).

however, we can estimate by looking at the graph. the solution is where both lines intersect, and that looks to be around (-2,6) as an approximation. hope this helps!

(-2 , 6 )

Sorry for the late answer!

Subtract: x2 + 2x + 1 – (x – 3)

Answers

Answer:3x - 2Step-by-step explanation:x2 + 2x + 1 – (x – 3)=> 2x + 2x + 1 -x - 3=> 3x - 2Conclusion:

Therefore, the answer is 3x - 2.

Hoped this helped.

[tex]BrainiacUser1357[/tex]

A scientist is working with 0.9 of gold wire. How long is the wire in millimeters?

Answers

The answer is 900milimeters

Answer:

9000 is your answer to this question hope it helps

Step-by-step explanation:

9000 es su respuesta a esta pregunta espero que ayude

-4r>16 I need help???

Answers

Answer:

-4

Step-by-step explanation:

Well to single out the “r”, you must divide both sides by -4:

-4r>16

/-4  /-4

  r<4

*remember to switch the sign because you dividing by a negative number*


Need help with this one

Answers

It would be the one in the middle

This is because whatever x * 3 is it is always 2 above y so the -2 makes it x = y

WILL GIVE BRAINLIEST
HELP ASAP!! WILL ADD 5 STAR RATING !!!

ANY AND ALL LINKS OR WRONG ANSWERS WILL BE REPORTED !!!!

Answers

ANSWER IS Z
........

FOR 20 POINTS r(x)=−7x−3 and q(x)=r(−3x).

What equation shows the correct rule for the function q?


q(x)=21x

q(x)=21x−3

q(x)=21x+9

q(x)=21x+3

Answers

Answer:

last one

Step-by-step explanation:

Answer: the correct answer is B the guy above me is wrong

Step-by-step explanation:

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