Solve the system by substitution.
y = 8x
y = 4x + 8

Answers

Answer 1

Answer:

y = 16

x = 2

Step-by-step explanation:

y = 8x

y = 4x + 8

then, by substitution:

8x = 4x + 8

8x - 4x = 8

4x = 8

x = 8/4

x = 2

y = 8x

y = 8*2

y = 16

Check:

y = 4x + 8

y = 4*2 + 8

16 = 8 + 8


Related Questions

The sinusoidal function f(x)=33sin(7x−π12)+33 models the height, in centimeters, that a valve stem of the a tire is above ground x seconds after the tire begins to rotate.

How long does it take the valve stem to complete one revolution?

Answers

Answer:

0.90 seconds

Step-by-step explanation:

We will see that one complete revolution takes (2π/7) seconds.

How long does it take the valve stem to complete one revolution?

Here we have the function:

f(x) = 33sin(7x−π/12) + 33

The time needed to do a full revolution is given by the period of the function.

Remember that:

sin(x) = sin(x + 2π).

Then:

sin(7x−π/12) = sin(7*(x + T) −π/12)

Then we must have:

2π = 7*T

Where T is the period.

Solving for T, we have:

2π/7 = T

This means that one complete revolution takes (2π/7) seconds.

If you want to learn more about sine functions, you can read:

https://brainly.com/question/9565966

#SPJ2

The width of a rectangle is 14 inches less than its length. The area of the
rectangle is 51 square inches. Find the dimensions of the rectangle.

Answers

nxnmx dnmdndnd ksjzjzbnx kxjzjjdnd

solve the equation x. 6/∑/n-1 (x-3n)=-3

Answers

Answer: I gave the evaluate answer and the differentiate w.r.t x answer. Sorry for caps.

Step-by-step explanation: EVALUATE  x4n−3

 DIFFERENTIATE W.R.T. X  (4n−3)x4(n−1)

A rectangles base is 2in. Shorter than twice its height. The rectangles area is 40in^2. Find it's dimensions.

Answers

Answer:

5 in by 8 in

Step-by-step explanation:

Given that :

Area, A of rectangle = 40 in²

Let

height = x

Base = 2x - 2

Area of rectangle = L * B

40 = x * (2x - 2)

40 = 2x² - 2x

2x² - 2x - 40 = 0

x² - x - 20 = 0

x² - 5x + 4x - 20 =0

x(x - 5) +4(x - 5) = 0

x - 5 = 0 or

x + 4 = 0

x = 5 or x = - 4

X cannot be negative

X = 5

Height = 5

Base = 2*5 - 2 = 8

Help please (((((((((((((((((((

Answers

Answer:

4

Explanation:

sum of interior angle= 180°

10x= 180- (80+60)

10x= 180- 140

10x= 40

x=40/10

x= 4

PLEASE MARK ME AS BRAINLIEST!!!!

Answer:-

[tex]\pink{\bigstar}[/tex] Value of x is [tex]\large\leadsto\boxed{\tt\purple{4}}[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

Knowledge Required:-

The sum of all the interior angles of triangle sum upto 180°.

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

Solution:-

Using the above knowledge we say that the angles of the given traingle should sum upto 180°.

Therefore,

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

➪ [tex]\sf 80^{\circ} + 60^{\circ} + 10x^{\circ} = 180^{\circ}[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

➪ [tex]\sf 140^{\circ} + 10x^{\circ} = 180^{\circ}[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

➪ [tex]\sf 10x^{\circ} = 180^{\circ} - 140^{\circ}[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

➪ [tex]\sf 10x^{\circ} = 40^{\circ}[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

➪ [tex]\sf x = \dfrac{40^{\circ}}{10^{\circ}}[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

➪ [tex]\sf x = \cancel{\dfrac{40^{\circ}}{10^{\circ}}}[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

[tex]\large{\bold\red{x = 4}}[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

Therefore, the value of x is 4.

You are tired at the end of the term and decide to borrow $500 to go on a trip to Whatever Land. You go to the bank and borrow the money at an annual rate of 11% for 6 months. Find the interest you will pay on the loan.

Answers

Answer:

$27.5

Step-by-step explanation:

P =$500, R = 11 pcpa, T = 6 months = 1/2 years

[tex]I = \frac{PRT}{100} = \frac{500 \times 11 \times \frac{1}{2} }{100} \\ \\ = 5 \times 11 \times \frac{1}{2} \\ \\ = 55 \times \frac{1}{2} \\ \\ I= \$ 27.5[/tex]

0.7 , 2/3 , 5/8 , 65% in least to greatest

Answers

Answer:

65%,0.7,2/3,5/8

Step-by-step explanation:

Answer:

5/8, 65%, 2/3, 0.7

Step-by-step explanation:

5/8 = .625

65% = .65

2/3= .667

.7 = .7


Need help ASAP!!!!!

Answers

Answer:

154

Step-by-step explanation:

Since its a circle, it will be 360 degrees, so then do 190+26=206, then do 360-206=154

Last week, John ran 10 miles. If John runs 35 percent farther this week, then how many more miles did he run this week?

Answers

10*.35=3.5 more miles

100% = 1.0
50% = .50
......

A clothing manufacturer produces 120 garments per hour, of which 5 are damaged. How many garments without damage would the manufacture except to produce in 8 hours?

Answers

Answer:

Step-by-step explanation:

First we have to found all the clothes that the manufacturer produces in 8 hours,

As given    120 clothes = produce in 1 hour

                  X clothes  = produce in 8 hour

By cross multiplication, we get

X= 120*8

X= 960  total clothes produced in 8 hours

As also given that in each hour 5 clothes damaged ,so we can write as

 5 clothes = damaged in 1 hour

Y clothes = Damaged in 8 hour

By cross multiplication we get

Y=  40 clothes damaged in 8 hour

So the total clothes that manufacturer produce with out damage clothe will be ,

Total normal clothes = X-Y   = 960 - 40  = 920 clothes

i don't understand this! can someone help me

Answers

Answer:

oh dang i hated doing these when i was in sixth grade lol umm  55?????

Step-by-step explanation:

A large smartphone company produces 15,000 smartphones per hour.

How long would it take this company to produce 300,000 smartphones?




15 h

20 h

30 h

40h

Answers

Answer:B) 20 hours

Step-by-step explanation:

15000 per one hour and if we multiply them all we get 300,000 smartphones if we do 15,000 multiplyed by 20. Hope it helps!

Answer:

20 h

Step-by-step explanation:

just do 15 x 20 then add the remaining zeros

The equation p=8.65h gives the amount p (in dollars) of pay a clerk receives for working h(hours)

Answers

Answer:

the clerk will make $8.65 an hour

Step-by-step explanation:

Answer:

P is the dependent variable, H is the independent variable

Step-by-step explanation:

simplify the fraction 37/8

Answers

Answer: it is already simplified.

x+y=5
3x-y=-5
is it no solutions, all solutions, or one solution?
please show your work.

Answers

Answer:

One solution

Step-by-step explanation:

x+y=5

3x-y=-5

Add the equations together will get you:

4x=0

Divide the 0 by 4 to get the x alone will get you

x=0

Answer:

There's one solution

(0,5)

Step-by-step explanation:

There's one solution

We can tell this is true because of the 3x in the second on and just hte x in the first. If you look closely you'll see the coefficents for the x values is the only difference between the two.

Let's now solve

We need to get a positive variable by itself

let's take x+y=5 and solve for y

x-5= -y

y= -x+5

We can then plug this y value into the other equation

3x-(-x+5)= -5

3x+x-5= -5

4x= 0

x=0

Let's then plug this value in for x into any of the beginning equations

0+y=5

y=5

In a holiday resort, the ratio of men to women is 5:6 and the ratio of
women to children is 4:7. There are 200 men staying at the resort. How
many children are there?​

Answers

Answer:

Men: 5 : 3 = 20 : 12

Women: 7 : 4 = 21 : 12

So for every 12 children there are 20 men to 21 women.

Neither men nor women compose more than half of the concert population

There are 200 men staying at the resort. Then the number of children in the resort will be 292.

What are ratio and proportion?

A ratio is a collection of ordered integers a and b represented as a/b, with b never equaling zero. A proportionate expression is one in which two items are equal.

In a holiday resort, the ratio of men to women is 5:6 and the ratio of women to children is 4:7.

There are 200 men staying at the resort.

Then the number of women in the resort will be

Women / 200 = 5 / 6

Women = 500 / 3

Then the number of children in the resort will be

(500/3)  / children = 4/7

                children = 291.67

                children ≈ 292

More about the ratio and the proportion link is given below.

https://brainly.com/question/14335762

#SPJ2

Find the third side in simplest radical form:
V91
9

Answers

So I think the square root is the square root of ten just look at the picture

What is the solution to the system of equations?

-4y – 3x = -11

x – 2y = 17

Answers

Answer:

Step-by-step explanation:

what is 488 rounded to the nearest hundred

Answers

Answer:

500

Step-by-step explanation:

Does anyone need help with History or Algebra, Common core, Pre-Algebra Or Fractions of such?

Answers

Answer:

I dont know but maybe later

x + y = -5 and x - y = -7

Answers

Answer:

x = -6 and y = 1

Step-by-step explanation:

Pls help me :(


Solve for x

Answers

Answer:

x = -3

Step-by-step explanation:

To answer this question, you should first remember that the inside angles of a triangle will always add up to 180 degrees. Therefore, we can make an equation and solve it form there:

55 + 54 + (x + 74) = 180

We add like terms:

109 + (x + 74) = 180

Continue adding like terms:

183 + x = 180

Next, we dubtract to siolate the "x" variable:

x = -3

Hope this helps :)

x=-3

Step-by-step explanation:

To start off, you're going to want to know and understand that all the angles of triangle equal 180 degrees.

Now that we know a triangle equals 180 degrees, lets make an equation. This is equation can be 55+54+74+x=180.

Now, lets combine the like terms in the equation. The equation now becomes 183+x=180.

From here, we subtract 180 from both sides, which would get us x=-3.

To double check that this is correct and that it works, you can plug in the -3 where the x would be.

I hope this helped!! Let me know if you have any further questions.

find the slope of the line

Answers

Answer:

Slope = 4

Step-by-step explanation:

The slop of the line is going to be rise over run.

So take where it the y value is 20 as [tex]y_1[/tex], and where it hits about 32 as value [tex]y_2[/tex].

You have you x value when y1 as 5 and x value at yw as 8.

So what you will do here is

[tex]\frac{y_2 - y_1}{x_2-x_1}[/tex]

[tex]\frac{32-20}{8-5}[/tex]

[tex]\frac{12}{3} = 4[/tex]

So your slope is 4.

Fredrick manages a band and sings lead vocals. The band charges $700 per concert. Fredrick receives $175 of that money, and he shares the rest equally among the other 5 members of the band. How much money does each of the 5 band members receive per concert?

Answers

Answer:

105

Step-by-step explanation:

 

Answer:

$105 for each member per concert

Step-by-step explanation:

700 - 175 = 525

525 divided by 5 = 105

What’s 17/21 closest to 0,1/2 or 1

Answers

Answer:

closest to 1

Step-by-step explanation:

The given fraction is converted into decimal to find the closest value as 1.

What is a fraction?

A fraction is a number written in the form a / b, where a and b are integers and b ≠ 0.

The number a is called as the numerator and b is the denominator.

The given fraction is 17/21.

It can be written in decimal as below,

⇒ 17/21 = 0.809

Now, the given decimal can be compared with 0, 1/2 and 1 as follows,

0.89 > 0, 1/2 and 0.89 < 1

Which implies that it is closest to 1.

Hence, the given fraction 17/21 is closest to the integer 1.

To know more about fraction click on,

https://brainly.com/question/10354322

#SPJ2

What is the value of the expression 22 + 62 ÷ 22? (1 point)

Answers

Answer: 22+62÷22

22+2.8181

24.8181

So 22+62÷22 is about 24.8181

hope this helps have a nice day❤️❤️❤️

Step-by-step explanation:

Answer:

22.73

Step-by-step explanation:

22+62=84

84/22=22.7380952381

15 POINTS & BRINILY IF RIght!

Solve for r.

r + 12 / 5 = 5
R =?

Answers

The answer is:
R = 13/5

HELP PLS
Comparing irrational numbers with calculator

Compare.

Answers

Answer:

3 2/3 is greater

Step-by-step explanation:

3 2/3 is 3.6666 while √11 is 3.32

The digit to the right of the hundreds place is?

The number is 3.2906

Answers

Answer:

3.2906, The 9

hope this helps :)

Fill in the blank _+8=+6
And chose the property of addition you send

Answers

Answer:

-2

Step-by-step explanation:

Just use 6-8 and you will get - 2

Check again with - 2+8 you will get positive 6

Other Questions
How does Earth's rotation affect ocean currents? Lesson 2.09Question 9 options:It causes them to flow in a curved path It has no affect It causes them to flow from east to west It causes them to flow from north to south Please help! Thanksssssssssssssssssssssssssssssssssssssssssssssssss. Please I dont understand I need help thank you The material that a rubber ball is made of is different from the material that makes up something like a pool table ball because it allows the ball to bounce. What type of energy is in this material? Please help I'm really bad at math. I will mark you brainliest if you get the answer right. does anyone here use quotev ? LOL What is the exact volume of the cone? with a 5 ft radius and a 16 ft height Levi went to GamePlay to trade in his old games. GamePlay will pay him $4.99 per game he trades in. If Levi trades in 5 games and wants to purchase a new game for $59.99, how much will he have to pay? Write your answer as a decimal to two places. At a strawberry stand Luisa paid $4.50 for 2 pounds of strawberries. How much would you expect to pay for five pounds or strawberry? since a bunch of pea brained dead beats keep on answering my questions "Heyyyyyyyyyyyyyyyyyyyyy" or some other BS pls answer ASAP(brainliest is applied to an actual correct answer) ANSWER THESE TWO QUESTIONS CORRECTLY TO BE MARKED BRAINILEST Brittany is making cookies. Her recipe calls for 2 1/2 cups of flour and 2/3 cups of sugar how much more flour does she need than sugar When labeling a pre-image and it's image, we use a small tick mark. It's called a(n): 1. rule 2. tic tok3. prime 4. quotation 4x + 5 + 3x 12 =A.9x-9B.7x+7C.7x-7 In a bag of marbles, image are red, image are blue, image are green, and image are yellow. You pick a marble without looking. What color marble are you MOST likely to choose? 75 POINTS!!! Identify both the immediate and longterm impact of colonization on America. I need to know Sergio rode mph and Sergio walked mph Describe the structure of DNA and how this structure allows DNA to carry out its function. (6 marks) why did a group known as theologians arise during the roman empire rather than the roman republic a population of 100,000 decreases by 6% each year. write a graph to explain that