Solve the system by substitution.
y = 5x
y = 9x + 4

Answers

Answer 1

Answer:

(-1, -5)

Step-by-step explanation:

[tex]\left \{ {{y=5x} \atop {y=9x+4}} \right.[/tex]

1. We must calculate x, for that we must substitute y, so we have:

5x=9x+4

2. Now we solve the equation.

5x-9x=4

-4x=4

x=-1

3. Now we must calculate y

y=5x

y=5(-1)

y=-5

And the answer is (-1, -5)


Related Questions

How many vertical asymptotes does the graph of this function have?F(x)=2/x(x+1)
A. 1
B. 3
C. 0
D. 2

Answers

Answer:

D.2

Step-by-step explanation:

A function assigns the value of each element of one set to the other specific element of another set. The correct option is D.

What is a Function?

A function assigns the value of each element of one set to the other specific element of another set.

A vertical asymptote is the value of x for which the function is not defined.

The vertical asymptotes that the graph of this function F(x)=2/x(x+1) will be 2 because x(x+1) is of the second degree.

Hence, the correct option is D.

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A ceramic vase that cost an antique store $5 was marked $20. What is the percentage markup on the price of the ceramic vase?
15%
75%
300%
400%

Answers

the answer would be 75%%%%

7. Where do the altitudes of ATUV meet?
70.6)
3
O
M-B-2)
U2)
A (0, 2)
B (0, 1.5)
C (0,1)
D (1.5, 1)

Answers

I think the answer is letter B or C I’m not sure

A shark can swim at an average speed of 25 miles per hour. At this rate, how far can a shark swim in 2.5 hours?

Answers

Answer:

62.5 miles in 2.5 hours

Hope this helped.

Lisa has a certain amount of money. She spent $39 and has 3/4 of the original amount left. How much money did she save originally

Answers

$156 is the correct answer.

52 – 18+(2 * 8) = 4
I don’t know what the answer is

Answers

Answer:

er i think its 50 4

Step-by-step explanation:

...

52-18+(16)=4

52-18+16=4

52-2=4

50=4

It says Use the distributive property to write the following in expanded form.
4(x+y)
write the expression using the WIRIS editor button​

Answers

Answer:

pretty sure it's 4x+4y however I'm not 100 percent sure

Samantha invested $880 in an account paying an interest rate of 3.1% compounded
continuously. Assuming no deposits or withdrawals are made, how long would it
take, to the nearest tenth of a year, for the value of the account to reach $1,270?

Answers

Answer: 11.8

Step-by-step explanation:

-6×-15=4×+35 i need help with this problem​

Answers

Isolate the variable by dividing each side by factors that don't contain the variable.

-6x-15+15=4x+35+15

-6x=4x+50
(Subtract 4 on both sides)

-10x=50
(Divide by 10 on both sides)

x=5

Answer:

x = -5

Step-by-step explanation:

-6x - 15 = 4x + 35

      + 15        + 15

-6x = 4x + 50

-4x   - 4x

-10x = 50

-10x/-10 = 50/-10

x = -5

What is 2 + 3/8?

Please helpp!!

Answers

Answer: 2 + 3/8 is 2 3/8, 19/8, or 2.375

Step-by-step explanation:

plz help
there are 4 grams of fiber in 1/2 cup of oats how many grams of fiber are in 3 1/2 cups of Oats ​

Answers

Answer:

28 Grams

Step-by-step explanation:

each half cup is 4 Grams and you have 3 and a half cups so you take 3x2 which is 6 and then you do 6x4 which is 24 and you add another 4 cause of the extra half. hope this helps. :)

Erick and Mia live the same distance from the park and decide to meet at the park one afternoon. The graphs show their distances from home over the same 30-minute period as they walked to the park. Each section of each graph represents 10 minutes.

Which statements are true ?
Choose all that apply.
Explain your answer.

A. Mia Returned to her house after 10 minutes.

B. Mia left her house 10 minutes before Erick left his house.

C. it took erick only 10 minutes to walk to the park.

D. Erick and Mia arrived at the park at the same time.

E. Erick walked the same distances as Mia during the last 10 minutes

Answers

Answer:

please continue i'm facinated on were this story goes

Step-by-step explanation:

From the graph, the correct options are given as,
B. Mia left her house 10 minutes before Erick left his house.
D. Erick and Mia arrived at the park at the same time.
E. Erick walked the same distances as Mia during the last 10 minutes.

What is a graph?

The graph is a demonstration of curves that gives the relationship between the x and y-axis.

Here,
The graphs show their distances from home over the same 30-minute period as they walked to the park.
From the graph,
It can be concluded that,
Both reach the park at the same time, as the termination point of the curve is the same.
The graph of mia starts after 10 minutes Erick, which implies Mia left her house 10 minutes before Erick left his house. And Erick walked the same distances as Mia during the last 10 minutes as the slope of the last segment of both curves is the same.

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a store bought 250 toys at a cost of 24$ each.
they sold all the toys at a percent markup of 60 percent.​

Answers

Answer: 2.5

Step-by-step explanation:

I took the test

Answer: $9600 revenue and $3600 profit from the toys

Step-by-step explanation: used a markup calculator

Justin is 2 years older than 1/4 his brothers age.

Brothers age = 12

Justin's age =_

Answers

Answer:

Justin is 5 yrs old

Step-by-step explanation:

make an equation out of it. Let x be Justin's age

1/4(12)+2=x

simplify

3+2=x

x=5

Justin's age is 5 years.

What is linear equation in one variable?

The linear equations in one variable is an equation which is expressed in the form of ax + b = 0, where a and b are two integers, and x is a variable and has only one solution.

According to the given question

Justin is 2 years older than 1/4 of his brother's age.

Let the age of Justin be x years.

Also, Justin's brother age is 12 years.

Therefore,

The age pf Justin is given by

[tex]x = 2 + \frac{1}{4}(12)[/tex]

solve the above linear equation

⇒ x = 2 + 3

⇒ x = 5 years

Hence, Justin's age is 5 years.

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How to find the measurement of BE and the coordinates of E

Answers

Answer:

The answer for #1 is 1 unit

The answer for #2 is (3, 2)

Little Tip:

I can tell you're using Goggle Forms. If you hit ctrl + U, you can find the answers to the questions in the code

Someone please help me quick I’m timed

Answers

It’s c because the x is exterior angles

SOMEONE PLEASE HELP ME T-T
Shania has 12 coins in her pocket. Of these coins, 5 are pennies and 7 are dimes. Shania randomly selects one coin from her pocket and, without replacing it, selects another coin from her pocket. What is the probability that both coins are dimes?

Answers

Answer:

10/12

Step-by-step explanation:

Answer:

10/12

Step-by-step explanation:

Increase £16470.45 by 3.5%

Answers

16470.45 x 1.035 = 17046.91575

Factor.
y^2-12y+20
i need help

Answers

Answer:

(y−10)(y−2)

Step-by-step explanation:

It’s (Y- 10) and (y-2)

Tatiana deposits $600 into a bank account that pays 4.75% interest compounded annually. The expression(1 + 0.0475)t represents the number of dollars in the account after t years for every dollar in the original balance. Which of the following is a reasonable interpretation of the expression 600(1 + 0.0475)t in this context?

A: The amount of interest the account earns after 1 year

B:The amount of interest the account earns after 600 years

C:The amount of money in the account after 1 year

D:The amount of money in the account after t years

Answers

Answer:

b

Step-by-step explanation:

Answer:

the answer is d just trust me im doing this test right now

Step-by-step explanation:

HURRRYYYY

Evaluate the following expression: 7 + 3b + 4b use a=3 and b=5

Answers

Answer:

222222222222224.705876

Answer:

42

Step-by-step explanation:

You would substitute B where is needs to go, 7 + 3(5) + 4(5). First multiply 3 x 5 to get 15, and then multiply 4 x 5 to get 20, 7 + 15 + 20. 7 + 15 = 22 + 20 = 42. I hope this helps.

Change 273° Kelvin to Celsius degrees.
P Leeeeeeeeeeee Sssssssssss help me

Answers

Answer: 273 degrees kelvin =  -0.15 degrees celsius

hope this helps brainliest plz

Write an expression that models the situation. Ruben has 83 red peppers and g green peppers. What is the total amount of peppers?

Answers

Answer:

83 + g

Step-by-step explanation:

The total amount of peppers is calculated as:

Number of red peppers + Number of green peppers

Ruben has 83 red peppers and g green peppers.

The total amount of peppers =

83 + g

Therefore, the expression that models the situation =

83 + g

Tuition for one year at Tarleton University is about $14,500. McKenzie wants to attend this university and will save money each month for the next 4 years. Her father will give her $6300 for her first year of tuition, and she received a $3,000 Grant. What is the amount of money McKenzie must save per month to have enough money to pay for her first year of tuition?​

Answers

Answer:

5200

Step-by-step explanation:

You know that she needs 14,500 for her first year

she has a total of 3000+6300 so far

To find out how much she needs just take the difference

14500-(3000+6300)=5200

Are x and y proportional?

Answers

The answer is yessssss

Answer:

yes they are

Step-by-step explanation:

use the distributive property to find two expressions that are equivalent to 7(3x - 4)

please help me i cant do this anymore, i'm having a panic attack and this is all due in 4 hours

Answers

I could only figure out one... sorry! Good luck

The answer is: 21x-28

Find the value of the greater root of x2-6x+5=0

Answers

Answer: x-1)(x-5)=0 x=1 and 5

Step-by-step explanation:

Plssss helpppp!!!!!!!

Answers

Answer:

Subtract 6 from both sides so the equation equals 0 ;)

Step-by-step explanation:

Answer:

Subtract 6 from both sides!

Step-by-step explanation:

I got it wrong at first 0-0

Vhich of the equations below represents a line parallel to the x-axis?
A. y = 3
B. y = X
C. y = 1/x
D. x = 3

Answers

I think it’s B, y=X. Hope it works
The answer is A. y=3

please hurry and answer correctly. fake answers will be reported

Answers

ok i’ve attached a picture with how i would work out the problem
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