please explain the steps to me . i’m genuinely confused

Answer:

Hello!!! Princess Sakura here ^^

Step-by-step explanation:

If the lower level has 100 less than 2 times as many seats as the upper level then the expression is 2x-100 and the middle level has 80 more than 3 times as many seats as the upper level so it's 3x+80 and lastly the top level is just x.

so now for the equation you would add all those expressions and they all should equal 2680:

[tex]x+3x+80+2x-100=2680\\6x-20=2680\\6x=2700\\x=450[/tex]

but now don't forget to plug in for the middle level:

[tex]3x+80\\3(450)+80\\1350+80\\1430[/tex]

Therefore the middle level has 1430 seats.

Answer:

D is your answer fella

Step-by-step explanation:

Answer:

2x - 5 = 47 is the expression .

x = 26

Step-by-step explanation:

The number is 26.

A branch of mathematics known as algebra deals with symbols and the mathematical operations performed on them.

Variables are the name given to these symbols because they lack set values. We frequently observe constant change in

In order to determine the values, these symbols are also subjected to various addition, subtraction, multiplication, and division arithmetic operations.

given:

Five less than twice a number is equivalent to 47

let the number is x

So, 2x- 5= 47

Now solving for x

2x- 5= 47

2x= 52

x= 26

Hence, the number is 26

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Answer:

(x, y, z ) = (4, 8, 12 )

Step-by-step explanation:

Given

x + y + z = 24 → (1)

5x + 3y + z = 56 → (2)

x + y - z = 0 → (3)

Eliminating z from the equations

Add (1) and (3) term by term

2x + 2y = 24 → (4)

Subtract (1) from (2) term by term

4x + 2y = 32 → (5)

Subtract (4) from (5) term by term

2x = 8 ( divide both sides by 2 )

x = 4

Substitute x = 4 into (4)

2(4) + 2y = 24

8 + 2y = 24 ( subtract 8 from both sides )

2y = 16 ( divide both sides by 2 )

y = 8

Substitute x = 4, y = 8 into (1)

4 + 8 + z = 24, that is

12 + z = 24 ( subtract 12 from both sides )

z = 12

Solution is x = 4, y = 8, z = 12

Answer:

-8

Step-by-step explanation:

-12 + (-7) + 11 combine like terms

-19 + 11  add + 11 to -19

-8

Answer:

63m

Step-by-step explanation:

Alex swims 45m in 1 min .

=> Alex swims 45 m in 60 secs

=> Alex swims 45/60 m in 1 sec

In 1 min & 24 secs ( or 84 secs ) , Alex can swim =

[tex] \frac{45}{60} \times 84 = 63 \: m[/tex]

Answer:

a

Step-by-step explanation:

Step-by-step explanation:

Variable n = number

7(n - 8) + 2 = 36

Answer:

square root of 2

Step-by-step explanation:

Answer:

67.5°

Step-by-step explanation:

From the diagram attached, it can be seen that <BAD = 90° (right angled). Also <BAD = <CAD + <BAC

From the question, we are told that the measurement of CAD is three times measurement of BAC, this means <CAD = 3<BAC

substituting this condition into the formula above:

<BAD = 3<BAC + <BAC

<BAD = 4<BAC

4<BAC = 90

<BAC = 90/4

<BAC = 22.5°

Next is to get <CAD:

<CAD = 3<BAC

<CAD = 3(22.5)

<CAD = 67.5°

Hence the measurement of <CAD is 67.5°

Answer: -180 for -6 and -20 for 2

Please give me Brainliest

Answer:

[tex]\boxed{x = \frac{15}{4} }[/tex]

Step-by-step explanation:

Hey there!

Given

[tex]\frac{x}{5} = \frac{3}{4}[/tex]

To single out x we multiply everything by 5, since 5 is being divided by x.

[tex]\frac{3}{4} * 5[/tex]

5 * 3 = 15

1 * 4 = 4

Ans = [tex]\frac{15}{4}[/tex]

Hope this helps :)

Answer:

x=3.75

Step-by-step explanation:

x/5=3/4

4x=15

15/4

x=3.75

Answer:

it is enough and she will have 6.19 left

Answer:

she has enough and her change would be $6.19

Step-by-step explanation:

the new balance would be $689.55

Step-by-step explanation:

line MN c. JK d. EF. 2. Name each figure using symbols and ... Use the diagram below to find each angle measure. a. ... Find mzCFG if FG is an angle bisector of CFB.

Answer:

credit goes to 561397  

1. Division 2. 1.6666.......

Step-by-step explanation:

Answer:

Divide

1/6

Step-by-step explanation:

Edge 2022

Answer:

6- 8- 10 triangle with 10 as the hypotenuse

Step-by-step explanation:

In any right triangle the hypotenuse must be the longest side.

This is only true for the 6- 8- 10 with 10 as the hypotenuse.

Also using Pythagoras' identity

6² + 8² = 10²

Answer:

22 laps

Step-by-step explanation:

Clara wants to run 5 1/2 miles, and the track is only 0.25 miles long. This is a fairly easy question, you just need to figure out how many times 5 1/2 goes into 0.25, because she wants to run that amount of miles (I could never run that much).

I hope that answers your question so you understand, and I hope you have a great rest of your day! :)

[tex]x^{2}[/tex]Answer:

(Explanation)

Step-by-step explanation:

Part A:

The graph of y = [tex]x^{2}[/tex] + 2 will be translated 2 units up from the graph of y = [tex]x^{2}[/tex].

If you plug in 0 for x, you get a y-value of 2. The 2 is also not included with the [tex]x^{2}[/tex], which is why it doesn't translate left.

This is what graph A should look like:

[Attached File]

Part B:

The graph of y = [tex]x^{2}[/tex] - 2 will be translated 2 units down from the graph of y = [tex]x^{2}[/tex].

If you plug in 0 for x, you get a y-value of -2. The 2 is also not included with the [tex]x^{2}[/tex], which is why it doesn't translate right.

This is what graph B should look like:

[Attached File]

Part C:

The graph of y = 2[tex]x^{2}[/tex] is a stretched version of the graph y = [tex]x^{2}[/tex]. Numbers that are greater than 1 stretch and open up and numbers less than -1 stretch and open down.

This is what graph C should look like:

[Attached File]

Part D:

The graph of y = [tex]\frac{1}{2}x^{2}[/tex] is a compressed version of the graph y = [tex]x^{2}[/tex]. Numbers that are in-between 0 and 1, and -1 and 0 are compressed.

This is what graph D should look like:

[Attached File]

Answer:

x=1

Step-by-step explanation:

3x-y=3

y=3-3x

9x-3y=9

9x-3(3-3x)=9

9x - 9 + 9x=9

9x + 9x=9 + 9

18x=18

x=18÷18

x=1

Answer:

m= 0

Step-by-step explanation:

Use the slope intercept form y=mx+b to find the slope m.

Hope this helps. Plz give brainliest.

Answer:

(2x+1)(2x+3)

Step-by-step explanation:

I am not sure

Answer:

91 lies between 9 and 10

Step-by-step explanation:

Answer:So x=15 does not define a function. Another way of describing the condition above is that x=15 fails the vertical line test - the requirement that any vertical line intersects the graph in at most one point. This fails when x=15 because a vertical line at that point intersects the graph at infinitely many points.

Step-by-step explanation:

No x=15 is not a function.

What is Mathematical function ?

Function is defined as the expression or relation between any given two variables such as x and y and there must be an independent variable and dependent variable.

In other words the function represents the graph between x and y that is for each value of x there exist one value of y but here there is no restriction in values of y that is y can have infinity values.

Therefore, x=15 is not a function.

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Answer:

The population of town B is 5 times greater than the population of town A

Step-by-step explanation:

Here in this question, we want to know the number of times in which the population of town B is greater than that of town A

To get the number of times, we simply divide the population of town B by the population of town A

From the question, the population of town B is 2 * 10^5 while the population of town A is 4 * 10^4

So to know the number of times,

We have (2 * 10^5) /(4 * 10^4) = 5

The population of town B is 5 times greater than the population of town A

Answer:

2x³ - 2x² + 4x + 2

Step-by-step explanation:

Step 1: Write expression

(4x - x³ + 3) - (2x² - 3x³ + 1)

Step 2: Distribute negative

4x - x³ + 3 - 2x² + 3x³ - 1

Step 3: Combine like terms

2x³ - 2x² + 4x + 2

Answer:

x+112°+133°+128°+100°+120°=720°(angle sum property of hexagon is 720)

x+593°=720°

x=720°-593°

x=127°

hope u understood!

Answer:  The slope is 3/2  if the given equation is actually this:  [tex]y=-\frac{2}{3}x+11[/tex]  Not this:

[tex]y=-\frac{2}{3}x+11y= -32[/tex]

Step-by-step explanation:

For perpendicular slopes, use the reciprocal of the given slope and reverse the positive-negative sign (additive inverse

the reciprocal of -2/3 is -3/2  the additive inverse is +3/2

Answer:

[tex]\frac{5}{12}[/tex] or 0.4166666667  

Step-by-step explanation:

You"re welcome!

Answer:

Step-by-step explanation:

3/4 - 1/3

lcm of 4 and 3 is 12

so,

3/4 = 3/4 × 3/3 = 9/12

1/3 = 1/3 × 4/4 = 4/12

so, 3/4 - 1/3 = 9/12 - 4/12 = 5/12

Hope this helps

plz mark as brainliest!!!!!!!!!!!

Answer:

g(-2) = -7

Step-by-step explanation:

To find g(-2), plug -2 into g(x).

g(x) = -4x² + 3x + 15

g(-2) = -4(-2)² + 3(-2) + 15

g(-2) = -4(4) + 3(-2) + 15

g(-2) = -16 + (-6) + 15

g(-2) = -1 + (-6)

g(-2) = -7