One fifth of the earths atmosphere is oxygen. What fraction is not oxygen?

Answer:

- 12

Step-by-step explanation:

Answer: -12 If you're trying to do 3 x negative 4.

Step-by-step explanation: I'm not sure what you're trying to do, that algebra stuff or just simply 3 x -4.

Answer:

e = 3

Step-by-step explanation:

we need to do inverse operations

6 + 6 = 12

12 divided by 4 = 3

e = 3

Check:

4(3) - 6 = 6

Answer:

e = 3

Step-by-step explanation:

The first step in solving an equation that has a variable is to isolate it. The variable is the unknown number and it is usually what you are trying to find the value of (x is the sign most used to represent a variable).

In order to isolate the variable in the equation 4e - 6 = 6, add 6 to both sides of the = sign:

4e - 6 = 6

   + 6 = + 6

4e - 6 + 6 = 6 + 6

We add 6 because doing so will cancel out the -6, leaving only e.

4e = 12

Now, because the question is asking for the value of e and not 4e, the next step is to divide both sides by 4:

[tex]\frac{4e}{4}[/tex] = [tex]\frac{12}{4}[/tex]

After dividing, the equation is shown as e = 3, which would be your answer.

Answer:

Each shelf holds 30 inches of filling.

Step-by-step explanation:

Divide 180 inches of filling by  the six shelves and you get 30 inches of filling per shelf

You are welcome

Answer:

4/7

Step-by-step explanation:

4/(3+4)

Answer:

10*pi+20

Step-by-step explanation:

The diameter is 20m. The perimeter can be split into the curve part and the diameter. The curve part is 1/2 the length of the circumference of the circle, which is 1/2 of 20*pi, which is 10*pi. So the perimeter is 10*pi+20

Answer:

x=4 and y=1

Step-by-step explanation:

3x−2y=10;3x+2y=14

=

x=4 and y=1

Answer:

x=4

y=1

Step-by-step explanation:

Answer:

1/9x + 1 = 7/3

-1              -1

1/9x = 1 1/3

divide by 1/9 on both sides to isolate x

x = 12

Answer:

12

Step-by-step explanation:

Answer:

Hey u want to join a meet and we can help u out I swear it's going to be fun yzn-dggf-jcq

Answer:

sin (32) = 8.5/x

Step-by-step explanation:

hypotenuse is opposite the right angle (x)

Looking at the 32° angle , the number 8.5 is the opposite 32° angle

Trig ratios are    sin ∠ =  opposite/hypotenuse

                           cos ∠ = adjacent/ hypotenuse

                           Tan ∠ = opposite/ adjacent

Learn: Soh - Cah - Toa

Answer: (2,-1)

Step-by-step explanation: since the problem says that ”Quadrilateral JKLM is reflected in the X-axis the opposite of x is y, so when reflected off of the X-axis the y becomes the opposite sign.

Answer:

The right side of the equation is only a different way of writing the left side, so any value of x will solve this equation.

The equation   − 2 (  x  +  3  )  =  − 2 x  −  6  does not have any specific solutions for the simple reason that the left and rigth sides are two representations of the same equation.

We have  − 2 (  x  +  3  )  means that each term inside the parenthesis should be multiplied with  − 2 , i.e.

− 2 (  x  +  3 )  =  − 2  ⋅  x  −  2  ⋅  (  +  3 )  =  − 2 x  −  6

Which is exactly what the right side says.

Any value of x will, therefore, fulfill this equation.

First second thrid

I believe it's the 2nd one

Answer:

Step-by-step explanation:

2m=200cm

40/200 x

100 =20%

Answer:

Given: c | | d, m 4 = m 5

Prove: m 7 = m 8

1. c||d, m∠4=m∠5

GIVEN

2. m∠4 = m∠7

If lines ||, alternate interior angles are equal.

3. m∠5 = m∠8

Vertical angles are equal.

4. m∠7 = m∠8

Substitution

Step-by-step explanation:

Step-by-step explanation:

= |2(4 - 14) + |8 - 5²||

= |2(-10) + |8 - 25||

= |-20 + |-17||

= |-20 + 17|

= |-3|

= 3

Answer:

Your answer is 3.

I hope it will help you.

Answer:

65

Step-by-step explanation:

The triangle is isosceles. That means that the Vertical line meets the base at right angles because the peak angle is bisected. we are to assume. So the left angle is given as 25 degrees. The base and vertical angle meet and 90 degrees and so we solve for x, because every triangle has 180 degrees.

x + 25 + 90 = 180                  Combine the left.

x + 115 = 180                          Subtract 115 from both sides

x = 180 - 115

x = 65

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

Value of variable x is ~

[tex] \boxed{ \boxed{65 \degree}}[/tex]

[tex] \large \boxed{ \mathfrak{Step\:\: By\:\:Step\:\:Explanation}}[/tex]

According to given figure, the two sides of the triangle are equal. therefore it's opposite angles will be equal as well !

that is ~

Both angles measure 25° and the central (non - equal) Angle among them is 2x (2 times the Angle x)

Now, let's use Angle sum property of Triangle to find the value of x ~

Answer:

42 is correct

Step-by-step explanation:

Correct.

[tex]y^2-x =49-7 = 42[/tex]

yes, 7 squared is 49. 49-7 is 42

Using the mean formular, the sum of the four scores that are not the median would be 360.

Average or mean score = 450 / 5

Mean score = 90

Hence, median score = mean score = 90

The sum of the 4 scores that are not the median can be calculated thus :

Sum of the 4 scores = 450 - 90 = 360

Hence, the sum of the 4 scores that are not the median is 360.

Learn more :https://brainly.com/question/25638609

Answer:

50=0.75x

Step-by-step explanation:

0.75 is how much each ticket costs.

x is how many tickets

50 dollars is how much you make.

We put 0.75 and x together since they both depend on each other.

y=mx+b

50=0.75x

The equation representing the total money in selling the tickets is

y = 0.75x + 50 where y is the total money and x is the number of tickets sold.

An equation is a mathematical statement that shows that two mathematical expressions are equal.

Given that, you are selling tickets, you make $50 for signing up to sell tickets, and you also make $0.75 for each ticket you sell.

The slope-intercept form of an equation is;

y = mx + c, where m is the slope of the line.

Let y represents the total money earned for selling the tickets and x be the number of tickets sold.

The equation will be;

y = 0.75x + 50, where 0.75x is cost for selling x tickets and 50 is fixed amount.

Hence, The equation representing the total money in selling the tickets is y = 0.75x + 50 where y is the total money and x is the number of tickets sold.

For more references on equations, click;

https://brainly.com/question/10413253

#SPJ2

Answer:

-3/4

Step-by-step explanation:

First, pick two coordinates.

(0,2) and (4,-1)

Then do the rise over run or y/x.

The y is 3 and the x is 4. That is 3/4.

Since the line is going down, it will be negative.

The answer is -3/4.

Answer:

c≤−26

hope that helped <3

Answer:

34.5

Step-by-step explanation:

To find the circumference of a circle you would need to use the formula diameter*3.14, which in this case would equal 34.54 , rounded to 34.5

Answer:

34.5

Step-by-step explanation:

To find the circumference of a circle you would need to use the formula diameter*3.14, which in this case would equal 34.54 , rounded to 34.5

im erics friend

Step-by-step explanation:

1.

-1 + 2x = 9

to get the solution

2x = 10

x = 5

2.

4 = 8 - x

x = 8 - 4 = 4

x/4 = 1

we could also write this

4 = 8 - x | /4

1 = 2 - x/4

x/4 = 1

x = 4

3.

x/2 - 3 = -5

to solve

x/2 = -2

x = -4

Answer:

[tex]\boxed{\sf m=\boxed{8}}[/tex]

Step-by-step explanation:

To determine the slope of a line given the coordinates of two points on the line, use the slope formula.

[tex]\boxed{\sf \mathrm{m}=\cfrac{y_2-y_1}{x_2-x_1}}[/tex]

x1 and y1 are the coordinates of the first point. The second point's coordinates are x2, y2.

[tex]\Box \:\:\sf Points:(6,-4)\:and (7,4)[/tex]

[tex]\leadsto\sf \left(x_1,\:y_1\right)=\left(6,\:-4\right)[/tex]

[tex]\leadsto\sf \left(x_2,\:y_2\right)=\left(7,\:4\right)[/tex]

______________

[tex]\longmapsto\sf m=\cfrac{4-\left(-4\right)}{7-6}[/tex]

[tex]\longmapsto\sf m=8[/tex]

________________________________

[tex]5x + 2y = 9 \\ x + y = - 3 \\ \\ x + y = - 3 \\ = > x = - 3 - y \\ \\ 5x + 2y = 9 \\ 5( - 3 - y) + 2y = 9 \\ = > - 15 - 5y + 2y = 9 \\ = > - 15 - 3y = 9 \\ = > - 3y = 9 + 15 \\ = > - 3y = 24 \\ = > y = - 8 \\ \\ x + y = - 3 \\ = > x + ( - 8) = - 3 \\ = > x = - 3 + 8 \\ = > x = 5[/tex]

(5,-8)

Hope it helps.

Do comment if you have any query.