Solve the system by substitution.
y=6x
y=3x+21
( , )

Answers

Answer 1

Answer:

(7,42)

Step-by-step explanation:

Imput the 6x for the Y:

6x=3x+21

move the variable to the left

6x-3x=21

collect like terms:

3x=21

divide both sides by 3x and youll get this for X

x=7

Imput x=7 into the equation

Y=6x7

solve:

y=42


Related Questions

What is the hardest part of solving a triangle with 2 sides given for you?

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Answer:

As long as you understand the principles and rules of trig you can apply them to just about any problem. The hardest thing about word problems is understanding what they are asking.

Step-by-step explanation:

ms. garcia asked her students to write the following expressions in standard

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nice thats my last name but I do not understand the question

Step-by-step explanation:

Answer: what is the main question?

Step-by-step explanation:

yo solve....14√x+15 = 71

Answers

Answer:

plug in 16 for x

14√x+15 = 71

14√x+15-15 = 71-15 = 56

14√x/14 = 56/14 = 4

√x^2 = 4^2 = 16

Type the correct answer in each box. Consider the expressions shown below.
A -7x^2-2x+5
B 7x^2-2x+7
C 7x^2+2x-5

Complete the following statements with the letter that represents the expression.

(3x^2-6x+11)-(10x^-4x+6) is equivalent to expression___ .

(-3x^2-5x-3)-(-10x^2-7x+2) is equivalent to expression___ .

(12x^2+6x-5)-(5x^2+8x-12) is equivalent to expression ___ .

Answers

Answer: 1. A 2. C 3. B

Step-by-step explanation:

Answer:

1 - A, 2 - C, 3 - B

Step-by-step explanation:

The dude above me is right

thanks pal

I will give brainliest!!!

Answers

Answer:

Didn't I just do this one?

hmm

It is B btw

Eloise has a mat that has a length of 8/9 meter and a width of 3/4meter. What is the area of Eloise's mat? Enter your answer as a fraction in simplest form by filling in the boxes.

Answers

Answer: 2/3

Step-by-step explanation:

Eloise has a mat that has a length of 8/9 meter and a width of 3/4meter. The area of Eloise's mat will be gotten by multiplying the length by the width. This will be:

= 8/9 × 3/4

= 24/36

= 2/3

pls help for brainlest

Answers

12/14+-7/14 . =5/14

lol

A ribbon is 5 2 5 yards long. Mae needs to cut the ribbon into pieces that are 2 5 of a yard long. How many pieces of ribbon can she cut?

Answers

Answer: The number of pieces of the ribbon she can cut = [tex]13\frac12[/tex] yards

Step-by-step explanation:

Given: The length of the ribbon = [tex]5\dfrac25[/tex] yards

[tex]= \dfrac{5\times5+2}{5} =\dfrac{27}{5}[/tex] yards

Length of each piece = [tex]\dfrac25[/tex] yards

The number of identical pieces can be cut from the entire ribbon = (Length of the ribbon ) ÷ (Length of each piece )

[tex]=\dfrac{27}{5}\div\dfrac{2}{5}\\\\=\dfrac{27}{5}\times\dfrac{5}{2}\\\\=\dfrac{27}{2}\\\\=13\dfrac12[/tex]

Hence, the number of pieces of the ribbon she can cut = [tex]13\frac12[/tex] yards

Taylor can clean pools at a constant rate of 2/5 pools per hour. What is the ratio of pools to hours?

Answers

Answer:1/25

Step-by-step explanation:

1/25 = (2/5)/p. This can be solved by cross-multiplying: p = 25(2/5) = 10. He can clean 10 pools in 25 hours.

solve for x
350 = 25(x+4)

Answers

X would equal 14
Hope this helps

Answer:

Step-by-step explanation:

I'm just going to reverse the equation because I'm more comfortable with the x being on the left side:

25(x+4) = 350

Do distributive property (I'll explain down below if you don't know what that is):

25x+100=350

Same to both sides

25x = 250

Divide 25 on both sides

x = 10

Distributive property is when there are multiple terms inside the parenthesis and 1 or more term outside of it

To show this works, lets do 6(5+1)

We can either do 6*6 or we can do 30+6 and we get the same answer

Let me know if you have any questions

find the x and y intercepts -6x+9y=-19

Answers

Answer:

y = -2.111...

x = 3.167

Step-by-step explanation:

Answer:

X= 3.16667

Step-by-step explanation:

other answer just in case

y-intercept = -19/9  = -2.11111

x-intercept = 19/6  =  3.16667

Slope     =  1.333/2.000 =  0.667

for more answer like this check out the website Tigeragebra.com

bye have a great day

Simplify the following expression.
(3+4i) + 2i(2 - 5i)

- 13 + 8i
7 + 8i
- 7 + 8i
13 + 8i

Answers

the correct answer is D. 13 + 8i

Find the value of each variable in the parallelogram.
X=
Y=

Answers

it’d be x=30 and y=18

Help!!!! I will Mark Brainiest!!!!! Use the graph of f(x) to answer the question!

Answers

Answer:

1.2

Step-by-step explanation:

The point on the graph (- 6, 1.2 ) gives the value of f = 1.2 when x = - 6

Then when x = - 6, the output f = 1.2

Alejandro buys 2 printer cartridges for $28 each and a printer for $85. He gives the cashier $150. How much change will Alex receive from the cashier?

A
$9

B
$11

C
$19

D
$37

Answers

Answer:

A.9

28x2=56

56+85=141

150-141=9

5.7 g = ? kg
Plase answer

Answers

Answer:

0.0057

Step-by-step explanation:

hope this helps

Answer:

0.0057

Step-by-step explanation:

1 kg is 1 thousand grams, so divide 5.7 by thousand, or add 3 spaceholders before it, and you get 0.0057.

(−9.3)(6.47)
Can soomeone plsss help me

Answers

The answer for your question is -60.171

Daniel bought a new pair of sunglasses for $41.75. The sales tax is 8%. What is the price of thesunglasses after tax is included?

O $38.41

O $47.50

O $45.09

O $3.34

Answers

Answer:

it's 45.09

Step-by-step explanation:

8% of 41.75 is 3.34

3.34 + 41.75 is 45.09

i need some help with this

Answers

Lol I’m pretty sure D is right but someone correct me if I’m wrong

Solve 2t-1>15 Please help

Answers

Answer:

C

Step-by-step explanation:

Add 1 to both sides:

2t > 16

Divide 2 to both sides:

t > 8

Answer: t > 8 !

Step-by-step explanation:

Hope this helped ! :)

list all of the factors of 15. tell whether 15 is prime or composite

Answers

Answer:

1,3,5,15    Composite because it has more than 2 factors.

Step-by-step explanation:

There are 4 female and 4 male kittens are sleeping together in a row. Assuming that the arrangement is a random arrangement, what is the probability that all the female kittens are together, and all the male kittens are together?

Answers

Answer:

I beleive the answer is 8

Step-by-step explanation:

4+4=8

The probability that the female kittens are together, and all the male kittens are together is 1/35.

What is Permutation?

Permutation is defined as the calculation of a set such that it defines the number of ways that something can be arranged.

Let A represents the arrangements of 8 kittens which includes 4 male and 4 female.

N(A) = 8P₈ / (4! × 4!) = 8! / (4! × 4!) = 70

Let B represents the arrangement of kittens such that 4 males are together and 4 females are together.

N(B) = 2

Probability of arranging kittens in such a way that all the female kittens are together, and all the male kittens are together = 2/70 = 1/35

Hence the required probability is 1/35.

Learn more about Probability here :

https://brainly.com/question/30034780

#SPJ3

HELP ME PLEASE!!!!
Select the correct answer.
Solve this inequality for x: -46 − 8x > 22.
A.
x -8.5
D.
x > 8.5

Answers

Answer:

x < - 8.5

Step-by-step explanation:

Given

- 46 - 8x > 22 ( add 46 to both sides )

- 8x > 68

Divide both sides by - 8, reversing the symbol as a result of dividing by a negative quantity

x < - [tex]\frac{68}{8}[/tex] , that is

x < - 8.5

Answer:

x < - 8.5

I hope this helps

Jane cuts a foam block along the red line. When she looks at the newly
exposed face, what is the shape of the cross-section?

Answers

I believe the answer is A

40 - 4x greater than it equal to 10

Answers

Answer:40 - 4x >= 10 or x <= 7.5

Step-by-step explanation: hope this helps

Expand and simplify
(2x + 5)2

Answers

Answer:

4x+10

Step-by-step explanation:

Here, and can u be kind enough to answer my recent question

help solve this equation

Answers

Answer:

If you're supposed to use elimination to find (x, y) the answer is (6, 1)

Step-by-step explanation:

Add:

2x+3y=15

  x-3y= 3

y cancels out and left with...

2x=15

  x=3

that becomes

3x=18

find x

18/3= 6

x=6

Then plug in x (which is 6) to one of the equations to solve for y

6- 3y= 3

-3y= 3-6

-3y= -3

y= 1

(x, y) equals (6, 1)

HELP! READ THE QUESTION DOWN BELOW (PICTURE)

Answers

Answer:

B) -5 and 5

Step-by-step explanation:

Integers are opposites if they are each the same distance away from zero, but on opposite sides of the number line. One integer is negative and the other is positive.

Find the angle of XZY

Answers

Answer:

23.6°

Step-by-step explanation:

to understand the solving stepsyou need to know abouttrigonometry i.g sin(x)=opp/hypoPEMDASgiven:opp:6hypo:15to find:xyz angle

let's solve:

[tex]let \: xyz \: angle \: be \: \alpha [/tex]

[tex]according \: to \: the \: question[/tex]

[tex] \sin( \alpha ) = \frac{xy}{zy} [/tex]

[tex] \sin( \alpha ) = \frac{6}{15} [/tex]

[tex] \alpha = asin( \frac{6}{15} )[/tex]

[tex] \alpha = {23.6}^{o} [/tex]

therefore

xyz angle=23.6°

A parabola can be drawn given a focus of (8, -5) and a directrix of y=-3 . What can be said about the parabola?

Answers

Answer:

The parabola is opening downward.

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