Mathematics College

What is the value of x in the solution to the system of linear equations?
y - 2x = -1
14 + 2y = 8x

Answers

Answer 1

Answer:

(3,5)

value of x is 3

value of y is 5

Related Questions

Divya is painting a room. She uses 3/4 gallon of paint to cover 1/5 of a wall. If the walls are all the same size how much paint will she need to cover one wall?

1) 3/20 gallons
2) 3 gallons
3) 3 3/4 gallons
4) 5 gallons

Answers

Answer:

3) 3 3/4

Step-by-step explanation:

John is putting together Christmas gift bags. If he has 20 Kit Kats and 35 bracelets, what is the greatest number of bags he can make in order to have the equal number of KitKats and bracelets in each bag? Hint: Find the GCF

Answers

Answer:5

Step-by-step explanation: the gcf for both number are 5, 20: 5*4. 35: 5*7

so I really need help. you have to set fractions equal to each other and try and find out how many prefer sweaters and whatnot. Also, the answer isn't supposed to be a fraction, it's supposed to be a whole number, you find the answer by using fractions with the information provided in the word problem above ^
I hope that makes sense. lol, thank you :)​​

Answers

I can’t help you with that movie

How many solutions does this system have: y = 3x -3 and y = 3x - 3​

Answers

Answer:

It has 1 unique answer or no solution

Step-by-step explanation:

Answer:

This system has only one solution

Step-by-step explanation:

:)

The distance in feet that Karina swims in a race is represented by 5d -5, where d is the distance for eac
What is an expression equivalent to 5d -5?
Choose the correct answer below.
A. 5d - 5 = 5(-5)
B. 5d -5 = -5 + 5d
C. 5d - 5 = 5-5d
D. 5d - 5 = -5(d+5)

Answers

Answer:

C. 5d - 5 = 5-5d

Step-by-step explanation:

The answer is B. 5b-5 = -5+5b

An understanding of statistics is necessary in any job. The use of statistics can help provide answers to many questions. Write a question you think that statistics may help you answer and explain why statistics can help provide an accurate answer.

Answers

Answer:

Statistics can help solving data quantitative analysis data.

Step-by-step explanation:

Statistics can help solving data quantitative analysis data.

Examples of questions, that statistics can help provide answers to

What is the measure of central tendency, that is representative of entire statistical data.

    Ans : It can be found out by calculating mean , median , mode

How widely dispersed or spread off is the data

   Ans : It can be found out by calculating standard deviation, variance

An example of a question statistics can help you answer is: What is are the socio-economic characteristics of people living in Texas?

Using frequency count and percentage, we can determine the gender, age distribution, occupation and other demographics of the population of people living in Texas.

What is Statistics?Statistics involves the collection, collation, analysis, and interpretation of data to form valid conclusions about problems and give answers to questions raised.We have descriptive and inferential statistics as the two types of statistics.For descriptive statistics, frequency count and percentage can be used to describe the socio-economic characteristics of a population.

Therefore:

An example of a question statistics can help you answer is: What is are the socio-economic characteristics of people living in Texas?Using frequency count and percentage, we can determine the gender, age distribution, occupation and other demographics of the population of people living in Texas.

Learn more about statistics on:

https://brainly.com/question/12150562

Solve 72 = 3v^2, where v is a real number

Answers

Answer:

v is equal to 6

Step-by-step explanation:

Answer: v=2√6 or v=−2√6

Step-by-step explanation:

The diagram shows a square.
(7x + 3) cm
Find the length of the side of the square.
(5x + 8) cm

Answers

The length of each side of the square is; 20.5cm

Squares and equal sides

Since, all sides of a square have equal lengths;

We can assume that the the sides given are equal so that we have;

7x +3 = 5x +8

2x = 8 -3

2x = 5

x = 5/2

x = 2.5

By substituting x into either of the expressions! we have;

7x + 3

7(2.5) + 3 = 17.5 + 3

= 20.5

Read more on squares;

https://brainly.com/question/2279006

how is the graph of f(x)=-3x^2-4 different from the graph of f(x)=-3x^2 ?

Answers

Answer:

B

Step-by-step explanation:

rules:

add outside the function : f(x) ± a;  will shift  a + up / a- down

add inside the function: f(x ± a); will shift a + left  / a- right

so if

f(x)  becomes f(x) -4  will be shifting down 4 units

3+(-4) on a number line iready

Answers

Answer:

it minus one or -1

Step-by-step explanation:

because 4 has more minus than 3 plus

Luis solves the following system of equations by elimination.
5s+ 3t = 30
2s+3t=-3
What is the value of s in the solution of the system?

Answers

the value of s is 11

i don't really understand, please help!!

Answers

Step-by-step explanation:

the proof is given above

Step-by-step explanation:

In Triangle ICU,

Angle 2 = 180° - Angle 1 (Angles on a straight line)

CR = CU - RU

In Triangle ISR,

Angle 3 = 180° - Angle 4(Angles on a straight line)

SU = RS - RU

Angle 1 = Angle 4

Therefore, Angle 2 is equal to Angle 3

CU = RS

Therefore, CR is equal to SU

Triangle ICR and Triangle ISU

IC = IS

Angle 2 = Angle 3

CR = SU

Therefore, Triangle ICR and Triangle ISU are congruent (SAS congruency).

As the two triangles are congruent, Angle CIR = Angle SIU

so if x +3y =1 how do i plug it in to -x +2y =4

-x +3y=1-x

3y/3=1-x/3

y=1/3 - x/3

y=-1/3x +1/3

Then I have to plug x into the y= the fractions confuse me

Answers

If x + 3y = 1, then x = 1 - 3y.

Then in the second equation, replace x with 1 - 3y :

-x + 2y = 4

- (1 - 3y) + 2y = 4

-1 + 3y + 2y = 4

-1 + 5y = 4

5y = 5

y = 1   →   x = -2

since x = 1 - 3•1 = 1 - 3 = -2.

Alternatively, you can instead solve for y in the first equation, so that if x + 3y = 1, you get

x + 3y = 1

3y = 1 - x

y = (1 - x)/3

Then replace y in the second equation:

-x + 2y = 4

-x + 2 ((1 - x)/3) = 4

-x + 2/3 (1 - x) = 4

Multiply both sides by 3 to get rid of the fraction:

-3x + 2 (1 - x) = 12

-3x + 2 - 2x = 12

-5x + 2 = 12

-5x = 10

x = -2   →   y = 1

since y = (1 - (-2))/3 = (1 + 2)/3 = 3/3 = 1.

Can I please get some help

Answers

Answer:

a)  8

b)  -4

c)  3x² - 4x + 8

d)  20

e)  28

Step-by-step explanation:

a)  (-2)² + 4 = 8

b) 8 + [4(-2) - 4] = 8 + (-8 - 4)  = 8 + (-12) = -4

c) 3(x² + 4) = 3x² + 12

   3x² + 12 - (4x - 4) = 3x² - 4x + 8

d) g(2) = 4     4² + 4 = 20

e) f(2) = 8      4(8) - 4 = 28

PLZ HELP!!
What quadrant is (0, 4)
A.1
B.2
C.3
D.4
E.x-axis
F.y-axis

Answers

Answer:

F.y-axis

Step-by-step explanation:

y axis is the answer because 0 is starting.

The given point

(0,4)

is on the positive segment of the y-axis.

Find the value of this expression if x=-9.

Answers

Answer:

if x = -9

then, (-9)×(-9) + 3

= 81 +3

= 84

(-9) + 6

= -3

so, ans is = 84/(-3)

= (-84)/3

what is 2(2 + k) simplified?

Answers

Answer:

4+2k

Step-by-step explanation:

You multiply them out.

2 x 2=4, and 2 x k =2k. Combine them. 4+2k.

Hope I helped!

Please help im deperate

Answers

Answer:

Step-by-step explanation:

1. No it is not a solution and doesn't work

2. Yes it does work for both

3. Only works for the first one

Solve the inequality 37v < -18

Answers

The Answer: V< - 18/37

Answer:

I'm not sure

Step-by-step explanation:

sorry need point

7/y = 3x make y the subject

Answers

Answer:

7/y=3x

(3x)y=7

y=7/3x

Can anyone help me out ASAP

Answers

Answer:

3 √ 2 /2

Step-by-step explanation:

Multiply the numerator and denominator by the conjugate.

Exact Form:

3 √ 2 /2

Decimal Form:

2.12132034

Hope this helps! Please consider marking brainliest! I hope you have an amazing day. Always remember, your smart and you got this! -Alycia :)

Slove for N will give brainliest

Answers

Answer:

n= -4/7

Step-by-step explanation:

Which is a correct name for the angle shown?

Answers

Answer:

Angle CBA (the last one)

Step-by-step explanation:

Just look at the order of it. It could either be Angle ABC or Angle CBA.

(hope this helps!)

I think it’s the first one of you do t already have a anwser

the product of -3/4 and a namber x is -27​

Answers

Answer:

36

Step-by-step explanation:

crossing out the 2 negatives, simplifying

3/4x=27

plz brainliestt

10. Simplify. * *
-4i (81)
32
50
47
35

Answers

Answer:

55+5=60

Step-by-step explanation:

up

1) Jared got 18 out of 25 questions correct on a quiz. What grade did he get?​

Answers

Answer:

72 or 72/100 or 72% or whatever

Step-by-step explanation:

18/25= .72  Simple!

A 24-foot by 72-foot rectangular dance floor is completely tiled with 1-foot by 1-foot square tiles. Two opposite corners of the dance floor are connected by a diagonal. This diagonal passes through the interior of exactly how many tiles

Answers

Answer:

do do do do to stop do so at to do do d

Prove: The sum of two multiples of 3
is a multiple of 3.
3m + 3n = [?](m + n)
= a multiple of

Answers

Just factor out the 3:

3m + 3n = 3 (m + n)



Shhdhskwoqoqpqpqlqlqlqlalalsmmsmsmznzhxhfhrsq

Answers

Answer:

C=14π

Step-by-step explanation:

C=2πr

14 is the diameter. radius is half of diameter. r=7

C=2π(7)

C=14π

a larger gear wheel has 40 teeth and a small gear wheel has 25 teeth. if the larger one makes 100 revolutions in a minute, how many revolutions does the smaller one make?

Answers

lets calculate gear ration T2/T1
so the gear ratio will be 1.6 it simply means dat if u rotate large gears one full revolution it tends to turn another short wheel to 1.6 revs, so in ur qtion the large whell revs 100 den u must multiply wid 1.6*100= 160 revs

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