Mathematics College

3х + 2y = 2
y = 4
Substitution

Answers

Answer 1

Answer:

x=-2

Step-by-step explanation:

hi! let's plug in 4 for y in the equation.

3x+2(4)=2

3x+8=2

3x=-6

x=-2

Answer 2

Answer:

x= -2

Step-by-step explanation:

you are going to substitute 4 in for y and then solve for x.

3 + 2y = 2y = 4Substitution

Related Questions

divide 72 in ratio 3:4:5​

Answers

The number who needs to be separated into a ratio = 72

Total number of parts = 3 + 4 + 5

= 12 parts

Each part = 72 ÷ 12

= 6

Then 3 parts = 3 × 6 = 18

4 parts = 4 × 6 = 24

5 parts = 5 × 6 = 30

Then , the ratio will be , 18 : 24 : 30

Therefore , 72 in the ratio 3:4:5 will be = 18 : 24 : 30 .

PLEASE HELP ME ASAP!!!! I WILL GOVE BRAINLIEST!!!

Answers

Answer:

Step-by-step explanation:

its the last one

B, trust me I’m lowkey good at math

1,265.19 is what percent of 699

Answers

Answer:

1,265.19 is 181% of 699

Step-by-step explanation:

Calculate the ratio of 1265.19 and 699, then convert it to a percent (multiply by 100%):

[tex]\dfrac{1,265.19}{699}=1.81\\\\1.81\cdot100\%=181\%[/tex]

helpppppppppppppppppppp

Answers

answer: 8.40049 × 10^7

1119 divided by 4 and some random stuff cause it aint long enough

Answers

Answer:

29.25 if rounded up it equals 29.3

Step-by-step explanation:

The expression (Ux²+x-T) (2x-1) can be written in the form (2x-1)²(x+S) where U, T and S are constant. Find the values of U, T and S....... Please help me solve this polynomial ​

Answers

Answer:

U=2, S=1, T=1

Step-by-step explanation:

(Ux²+x-T) (2x-1)=(2x-1)²(x+S)

(Ux²+x-T)=(2x-1)(x+S)=2x²+(2S-1)x-S

U=2

2S-1=1 --> S=1

T=S=1

A scanner can scan 20 pages and 120 seconds. How many pages can scan in 4 minutes?

Answers

Answer:

40 pages

Step-by-step explanation:

120 or 2 min x 2 = 4

20 x 2 = 40

Sorry I couldn't explain more, but I hope this helps!

Answer:

40 pages

Step-by-step explanation:

convert 4 mins -> 240 secs

then cross multiply 20/120 and x/240 (x represents the pages scanned)

u then get 120x=4800

simplify(divide)-> x=40

This question only for JungKookLuver and JungKookLuver.... is this right...

Answers

Answer: Yes it is right.

Step-by-step explanation: Have a blessed day!

Answer: Yes, it’s correct!

Step-by-step explanation: Have A Great Day Bro! :)

Given that BD is an angle bisector

Solve for m

Answers

Answer:

24 degrees

Step-by-step explanation:

since BD is an angle bisector, the given numbers are equal to each other

this means that you can write the equation as: 6x = x + 20

subtract x from both sides to move the variable to one side, this leaves you with: 5x = 20

then divide both sides by 5 to find x: x = 4

now substitute this into the value given for angle ABD: 6(4)

this gives you 24 degrees

Need help Fast Inputs & outputs : equation

Answers

Answer:

-3

Step-by-step explanation:

-9t-4=23

-9t=27

t=-3

I'm still figure is a rectangular prism identity which one of the line segment in the given figure is perpendicular to HG​

Answers

Answer: so, its pretty simple so just figure it it so, its pretty simple so just figure it it

Step-by-step explanation: so, its pretty simple so just figure it it so, its pretty simple so just figure it it!

what are the numbers divisible by 4110

Answers

Answer:

4110 / 1 = 4110

4110 / 2 = 2055

4110 / 3 = 1370

4110 / 5 = 822

4110 / 6 = 685

4110 / 10 = 411

4110 / 15 = 274

4110 / 30 = 137

4110 / 137 = 30

4110 / 274 = 15

4110 / 411 = 10

4110 / 685 = 6

4110 / 822 = 5

4110 / 1370 = 3

4110 / 2055 = 2

4110 / 4110 = 1

Answer:

2,5,1,3,6,10,15,30,137

please help me with this i need help with it+ send the answers not the explnation please

Answers

Answer: the picture is blocked

Step-by-step explanation:

What is the perimeter, in units, of polygon EFGHJK?

Answers

Answer:

38 units.

Step-by-step explanation:

Perimeter of the polygon EFGHJK = 38 unit

What is perimeter?

Perimeter of a shape is defined as the total length of its boundary. The perimeter of a shape is determined by adding the length of all the sides and edges enclosing the shape. It is measured in linear units of measurement like centimeters, meters, inches, or feet.

Given,

In graph of polygon EFGHJK

EF = 2 unit

FG = 10 unit

GH = 9 unit

HJ = 8 unit

JK = 7 unit

KE = 2 unit

Perimeter of EFGHJK = EF + FG + GH + HJ + JK + KE

                                    = 2 + 10 + 9 + 8 + 7 + 2

                                    = 38 unit

Hence, 38 unit is the measure of perimeter of polygon EFGHJK.

Learn more about perimeter here:

https://brainly.com/question/6465134

#SPJ2

HELP ME PLS!! Here’s a picture that i uploaded for the question.

Answers

there is no picture :(


Find an expression for the volume of the cubic box.

Answers

volume=v
side=s

v=s*s*s

Which is the slope of the line that passes through the points (4, 2) and
(6, 7)?

Answers

Answer:

2.5

Step-by-step explanation:

Use the formula y2-y1 divided by x2-x1

Plug in the values: (7-2)/(6-4)

5/2

=2.5

PLEASE HELP ME!



I would really appreciate it.

Answers

Answer:

Step-by-step explanation:

It's D the reasoning here is just look at the points at the graph and their x y coordinate

The answer is d - (-2,1), (0,-1) and (2,-3).

14. Quincy delivered 240
newspapers yesterday and 180
newspapers today.

Answers

Answer:

What is the question?

Step-by-step explanation:

I need help asap

Solve for k

1/3(k-9)=1/3k+1/3


Thank you :)

Answers

Answer:

solve 1/3 (k - 9) = 1/3 k + 1/3 for k = (no solutions exist)

Step-by-step explanation:

1/3(k-9) = 1/3k + 1/3
1/3(k-9) = 1/3(k+1)
Divide both sides by 1/3
k-9 = k + 1
0k = 10

No solution


What is the solution to the equation 7,- 5* ++5
-
16
ff - 25?
h = 11
3
h = 5
h = 7
6
21
2

Answers

Answer:

the answer to the problem is h=7

Help meeee pleaseeeeee

Answers

Answer:

B.

Step-by-step explanation:

I think its B because the Y comes before the slope

3. Critique Reasoning Each side of a square patio
is 10.5 feet. The patio is made up of 1.5-foot by
1.5-foot square stones. What is the number of
stones in the patio? Look at the solution below.
Does it include all the steps needed to solve the
problem? Explain.
10.5 X 10.5 = 110.25
110.25 = 1.5 = 73.5

Answers

Answer:

Yes

Step-by-step explanation:

In Ms. Renault's classroom, 2/5 of the students play sudoku. Of the student who play sudoku, 5/6 also play checkers. If there are 30 students in her class, how many play sudoku and checkers?

Answers

Answer:

10 students play sudoku and checkers

Step-by-step explanation:

First find the number of students that play sudoku

2/5 * 30

12

of those 12 students, 5/6 play checkers

12 * 5/6 = 10

10 students play sudoku and checkers

If x^(y)=5^(x-y) then dy/dx=​

Answers

First, rewrite

[tex]x^y=e^{\ln x^y}=e^{y\ln x}[/tex]

[tex]5^{x-y}=e^{\ln5^{x-y}} = e^{\ln(5)(x-y)}[/tex]

Now, differentiate both sides using the chain rule:

[tex]\dfrac{\mathrm d\left(e^{y\ln x}\right)}{\mathrm dx}=\dfrac{\mathrm d\left(e^{\ln(5)(x-y)}\right)}{\mathrm dx}[/tex]

[tex]e^{y\ln x}\dfrac{\mathrm d(y\ln x)}{\mathrm dx}=e^{\ln(5)(x-y)}\dfrac{\mathrm d(\ln(5)(x-y))}{\mathrm dx}[/tex]

[tex]x^y\left(\dfrac{\mathrm dy}{\mathrm dx}\ln x+y\dfrac{\mathrm d(\ln x)}{\mathrm dx}\right)=\ln(5)5^{x-y}\left(\dfrac{\mathrm d(x)}{\mathrm dx}-\dfrac{\mathrm dy}{\mathrm dx}\right)[/tex]

[tex]x^y\left(\ln x\dfrac{\mathrm dy}{\mathrm dx}+\dfrac yx\right)=\ln(5)5^{x-y}\left(1-\dfrac{\mathrm dy}{\mathrm dx}\right)[/tex]

[tex]\left(x^y\ln x+\ln(5)5^{x-y}\right)\dfrac{\mathrm dy}{\mathrm dx}=\ln(5)5^{x-y}-yx^{y-1}[/tex]

[tex]\dfrac{\mathrm dy}{\mathrm dx}=\dfrac{\ln(5)5^{x-y}-yx^{y-1}}{x^y\ln x+\ln(5)5^{x-y}}[/tex]

You want to test whether salaries for male doctors are different from salaries for female doctors, using a random sample of 100 male and 100 female doctors. The statistical test you should use is

Answers

Complete Question

You want to test whether salaries for male doctors are different from salaries for female doctors, using a random sample of 100 male and 100 female doctors. The statistical test you should use is

a. t-Test: Two-Sample Assuming Equal Variances

b. t-Test: Two-Sample Assuming Unequal Variances

c. z-Test: Two Sample for Means

d. t-Test: Paired Two Sample for Means

Answer:

The correct option is  C

Step-by-step explanation:

From the question we can see that

    The  salaries for male doctors is independent of The  salaries for female doctors

 Hence the samples obtained from both populations are independent

Also  both of the random samples are sufficiently large.

So given that the samples are independent and sufficiently large then the best statistical test to use is  z-Test: Two Sample for Means

Pls help. .................................

Answers

A is the correct answer

Question 6 of 10
What is the effect on the graph of f(x) = 1 when it is transformed to
g(x) = } - 7?
A. The graph of f(x) is shifted 7 units to the right.
B. The graph of f(x) is shifted 7 units down.
C. The graph of f(x) is shifted 7 units to the left.
O D. The graph of f(x) is shifted 7 units up.
SIR

Answers

Answer:

D I'm pretty sure

Step-by-step explanation:

Answer:

Its B. i just did this question.

Step-by-step explanation:

Specially equipped c argo planes and helicopters help "attack" wildfires by dropping flame retar dant chemicals and water True o False​

Answers

Answer:

True

Step-by-step explanation:

Paula caught a tarpon with a weight that was 11 times as great as the weight of a permit fish she caught. The total weight of the two fish was 168 pounds

Answers

Answer:

Permit fish=14 pounds if thats the question

Tarpon=154

Step-by-step explanation:

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