3(x − 2y) = −12(x + 2y)

Answer:

first problem) he messed up at 4(1 + 5n), only multiplying the 1 by 4, instead of both the 1 and 5n,

work-

-8n + 4(1 + 5n) = -6n - 14

-8n + 4 + 20n = -6n -14

12n + 4 = -6n - 14

18n +4 = -14

18n = -18

n= -1

second problem)  he messed up towards the end, where he put 3x = 3x, then x=0. in this case, x would equal x, so the answer is "infinitely many solutions"

all the other work is correct in that problem

third problem) on the right side of the equation, ( 4x+10+3x-6), when they were adding the like numbers, instead of subtracting 6 from 10, they added 6, giving them 16 instead of 4

correct work-

2x - 8 + 3x +2 = 4x +10 + 3x -6

5x - 6 = 7x + 4

-5x         -5x

-6 = 2x +4

-4           -4

-10 = 2x

-5 = x

hope i helped  :)

Answer:

Step-by-step explanation:

-10<x≤10

Open circle on -10

Closed circle on 10

A flowchart proof is a visual representation of logical steps used to prove a mathematical statement or theorem.

It involves breaking down the proof into a series of connected statements and reasons, organized in a flowchart format.

Each statement is supported by a reason or justification, demonstrating the logical progression of the proof. Flowchart proofs provide a clear and structured way to present mathematical arguments, allowing for easy comprehension and verification of the proof's validity.

They help in identifying key steps, dependencies, and the overall structure of the proof, making it easier to follow and understand the reasoning behind mathematical statements.

Learn more about flowchart here

https://brainly.com/question/34362549

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Answer:

Step-by-step explanation:

Circumference formula

Solving for radius

Answer:

the empty set

Step-by-step explanation:

right on edge

Answer:First one is x=1

second is y=22

Step-by-step explanation:

Answer:

Step-by-step explanation:

For first equation:

For second equation:

I hope this helps!

Answer:

  0.000000116

Step-by-step explanation:

When the exponent is negative, the most-significant digit goes in the number place that is that many places to the right of the decimal point.

Here, the most-significant 1 is in the 7th place to the right of the decimal:

  1.16E-7 = 0.000000116

Answer:

Step-by-step explanation:

Cost of the car = $21000

Mark up = 1/3*21000 = $7000

Sale price = 21000 + 7000 = $28000

Answer:

3/5

-----------------

the answer is the first one, 3/3.

Answer:

C

Step-by-step explanation:

First, you have to find the fraction for yellow. To do that, combine the other fractions by converting them to all have a denominator of 12. Once you do this, you know that yellow is 1/4, making the answer 48.

Answer: C. 48

Step-by-step explanation: Because Imm smart, Also can you give me brainliest it will help much appreciated

Answer:

n=3

Step-by-step explanation:

Answer: y=-1/4x+3

Step-by-step explanation:

==================================================

Explanation:

y = mx+b is the general form of slope intercept equations

m is the slope, b is the y intercept

The y intercept is where the graph crosses the y axis. In this case it is at (0,3) so b = 3 is the y intercept

--------------------

The slope can be found through using the slope formula

m = (y2-y1)/(x2-x1)

m = (2-3)/(4-0)

m = -1/4

Or you could note that to go from (0,3) to (4,2) we must go down 1 and over to the right 4.

slope = -1/4 = rise/run

rise = -1 means we go down 1

run = 4 means we move to the right 4

--------------------

Since m = -1/4 and b = 3, we go from y = mx+b to y = (-1/4)x+3

Answer:

The tree was 40 in tall when planted

The tree's growth rate is 10in per year

Ten years after Planting, it is 140 inches tall

Step-by-step explanation:

original(slope intercept form) : y = 10x + 40

y = 10(10) + 40

y = 100 + 40

y = 40

Answer: 2/9

Step-by-step explanation:

Answer:

2/9

Step-by-step explanation:

y2 - y1 over x2 - x1

Then subtract and get 2/9

Hope this helped and have a great day!

(Please brainliest)

Answer:5 1/3

Step-by-step explanation:

Answer:

y-x

Step-by-step explanation:

Answer:

Y=-x

Step-by-step explanation:

Because any other ones have stuff they should.

Answer:

d

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

c

Answer:

Section A = 2,200 seats

Section B = 800 seats

Section C = 300 seats

Step-by-step explanation:

Three sections

Section A cost = $60

Section B cost = $70

Section C cost = $120

Total seat = 3300

Total earnings = $224,000

He wants to have twice as many $60 tickets as the sum of the other​ tickets

A = 2(B + C)

A + B + C = 3,300

60A + 70B + 120C = 224,000

substitute A = 2(B + C)

2(B + C) + B + C = 3,300

60(2B + 2C) + 70B + 120C = 224,000

2B + 2C + B + C = 3,300

120B + 120C + 70B + 120C = 224,000

3B + 3C = 3,300 (1)

190B + 240C = 224,000 (2)

Multiply (1) by 80

240B + 240C = 264,000 (3)

190B + 240C = 224,000 (2)

Subtract the equations

240B - 190B = 264,000 - 224,000

50B = 40,000

B = 40,000 / 50

= 800

B = 800

Substitute the value of B into (1)

3B + 3C = 3,300 (1)

3(800) + 3C = 3,300

2,400 + 3C = 3,300

3C = 3,300 - 2,400

3C = 900

C = 900 / 3

= 300

C = 300

Substitute values of B and C into

A + B + C = 3,300

A + 800 + 300 = 3,300

A + 1,100 = 3,300

A = 3,300 - 1,100

= 2,200

A = 2,200

Section A = 2,200 seats

Section B = 800 seats

Section C = 300 seats

Answer:

RE9PHYIOUHAHT8HSAPHTOASHO0TEHT

Step-by-step explanation:

Answer:

x=20/3 y=17/3

Step-by-step explanation:

1. x-y=1

2. 2x+y=19

The first equation can be rewritten as 2x-2y=2

We can then subtract the second equation from this:

2x-2y=2

2x+y=19

-3y=-17

y=17/3

Plug this into to solve for x:

x-17/3=1

x=17/3+1

x=20/3

[tex]f(x) = x + 2[/tex]

[tex]y = x + 2[/tex]

Subtract the sides of the equation minus 2

[tex]y - 2 = x[/tex]

So ;

[tex] {f}^{ - 1}(x) = x - 2 [/tex]

_________________________________

And we're done.

Thanks for watching buddy good luck.

♥️♥️♥️♥️♥️

Answer:

-2

Step-by-step explanation:

Answer:

[tex]x=\frac{1}{2}[/tex]

Step-by-step explanation:

So we are given the equation:

y = 4x - 1

and we are asked to find the value of x when the value of y is 1.

In other words, what is x when y = 1? To find this, we can plug in 1 for y and solve for x.

1 = 4x - 1

Now solve for x. Add 1 to both sides.

2 = 4x

Divide both sides by 4.

[tex]x=\frac{1}{2}[/tex]

So now we have found that when the value of y is 1, the value of x is 1/2.

I hope you find my answer and explanation to be helpful. Happy studying.

Answer: sorry i cant read it its to small

Step-by-step explanation:

Answer:

0,2

Step-by-step explanation:

also pls try to answer my question have to finish this

Answer:

[tex]\boxed { x = \frac{3}{5}}[/tex]

Step-by-step explanation:

Solve for the value of [tex]x[/tex]:

[tex]7x + 6 = 17x[/tex]

-Take [tex]17x[/tex] and subtract it from [tex]7x[/tex]:

[tex]7x + 6 - 17x = 17x - 17x[/tex]

[tex]-10x + 6 = 0[/tex]

-Subtract [tex]6[/tex] to both sides:

[tex]-10x + 6 - 6 = 0 - 6[/tex]

[tex]-10x = -6[/tex]

-Divide both sides by [tex]-10[/tex]:

[tex]\frac{-10x}{-10} = \frac{-6}{-10}[/tex]

[tex]\boxed { x = \frac{3}{5}}[/tex]

So, the value of [tex]x[/tex] is [tex]\frac{3}{5}[/tex]

Answer:

coooooooooooooooool

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

the answer is 1 carbon and 4 hydrogen

Answer:

4 hydrogen atoms and 1 carbon atom, C

Step-by-step explanation:

In CH4, a number next to an atom´s symbol represents the number of that atom. When there is only one, there will be no number shown next to the atom´s symbol.

Answer: you have: C(X)=3x+2.00

x=number of minutes

Pay attention to the y=mx+b form where m=slope-->>

3x is the slope...

so it's 3(times the number of minutes) <<---or (x)

This means that the slope is 3, or the fancy way of saying it-->>"rate of change."

The rate of change of the cost of the taxi ride is $3.00 per minute.

Step-by-step explanation: