Twice a number added to their half of itself equals 20 find the number

Answers

Answer 1

Answer:

[tex]x(2) + 5\\[/tex]

The number is 8 because [tex]8 * 2 = 16[/tex]

And if you add 4, you get 20

Hence, the number is 8

Answer 2

Answer:

8

Step-by-step explanation:

let the number be x

=>               2x+(x/2) = 20

=>               4x+x/2 = 20

=>               5x/2 = 20

=>               5x = 20*2

=>               5x = 40

=>               x = 40/5

=>               x = 8

can i get brainliest    


Related Questions

To find the probability of two
independent events, you
their
probabilities.
A) add
B) subtract
C) multiply D) divide

Answers

Answer:

To find a probability Multiply two independent events.

Use the two-way frequency table at the right to find the probability P(7th-grade boy).
(Simplify your answer.)

Answers

Answer:

8/50

Step-by-step explanation:

find the total number of 7th grade boys

put that in the numerator

I'm assuming you're trying to get the probability of picking a 7th grade boy out of all the kids in the soccer camp so 50

What is the absolute value of -|-4| ?

Answers

Answer:

- 4

Step-by-step explanation:

the absolute value function always give a positive result , that is

| - a | = | a | = a

then

- | - 4 | = - | 4 | = - 4

im stuck and i need help

Answers

a right angle is always 90° and is you sum up all 3 of the angles of the triangle, you always get 180°, so:

180°-55°-90°= 35°

What is the sum of 4 x 10-5 and 3 x 10-5 written in standard form

Answers

Answer:

7 * 10 to the power —5

Step-by-step explanation:

check out the attached photo.

Answer:

70x - 10

Step-by-step explanation:

In a answered math the problem [tex]\sqrt{-2}[/tex] plus [tex]\sqrt{-18}[/tex] was [tex]4\sqrt{2i}[/tex] as it was rewritten as [tex]\sqrt{2i} + \sqrt{18i}[/tex]. Why can [tex]\sqrt{-2}[/tex] be written as[tex]\sqrt{2i}[/tex]

Answers

Ok so basically this is this and that is that !

[tex]\text{The imaginary unit,}~ i = \sqrt{-1}\\\\\sqrt{-2} ~ \text{can be written as.}\\\\\sqrt{-2}\\\\=\sqrt{-1 \cdot 2}\\\\=\sqrt{-1} \sqrt{2}\\\\=i\sqrt 2\\\\=\sqrt 2 i[/tex]

PLEASE HELP I NEED TO GET DONE IN 10 MINUTES!!!
Marianna is painting a ramp for the school play in the shape of a right triangular prism. The ramp has dimensions as shown below. She will not paint the back or bottom surfaces of the ramp. What is the surface area of the ramp?

Answers

Answer:

3672 sq in

Step-by-step explanation:

The area painted would be 3672 sq in.

ANSWER QUESTION BELOW CORRECTLY FOR BRAINLIEST

Answers

The answer is C

Sorry if wrong

I need help with Function Operations

Answers

Answer:

490

Step-by-step explanation:

d(x)=700-7(30)

7x 30=210

700-210=490

therefore,

r(x)=490

CHOOSING BRAINLIEST PLEASE HELP

Answers

Answer:

The answer is the 2nd 1

Step-by-step explanation:

It's a basic graph

Which ordered pairs match the mapping diagram? O (1, 0), (7, 2), (3, 1), (-1, 1), (-7, -6) (0, 1), (2, 7), (3, 4), 4, 1), -6, 7) O(0, 1), (0, 4), (0, 7), (2, 7), (6, 7) (0 1), (2, 7), 3, 4), (4, 1), (6, 7)​

Answers

Answer:

I've done this b4

(0, 1), (2, 7), (3, 4), (-4, 1) , (-6, 7)

When you are analyzing the relationship between two continuous variables, how should you plot the data?.

Answers

Answer:

Scatterplot.

Step-by-step explanation:

Scatterplots help in analyzing the relationship between two continuous variables

Which polynomial represents the area of the rectangle?
44-6
x +1
O 4x2 - 2x - 6
O 4.2 - 6
O 4.c+ 2x - 6
0422 - 10.2 - 6

Answers

Answer:

4x2 - 2x - 6

Answer number 3 please

Answers

Answer:

100 cm square?

Step-by-step explanation:

1 meter square = 100 cm square

Answer:

10,000 cm²

Step-by-step explanation:

m² to cm² conversion

1 m x 1 m = 1 m²But we know : [1 m = 100 cm]100 cm x 100 cm = 10,000 cm²Therefore, 1 m² = 10,000 cm²

So, the surface area of the prism in cm² is 10,000 cm²

PLEASE HELP Solve the right triangle.
Round your answers to the nearest tenth.

Answers

I think A equals 44 degrees
A = 44 ( triangles add up to 180°) as you can see there is a right angle, a right angle = 90°. Sooo if we do 90+46 we get 136. Since a triangle adds up to 180° we do 180-136=44

Hurry pls!

A miniature connector is shaped like this hexagonal prism. The prism has a base area of 8.15 cm².

What is the volume of the connector?

Enter your answer as a decimal in the box.
cm³


Answers

The volume of the connector given the base area and the height is 84.70cm³.

What is the volume of the connector?

A hexagonal prism is a three dimensional object that is made up of a hexagonal base. It has 8 faces, 18 edges, and 12 vertices.

Volume = [tex]\frac{3\sqrt{3} }{2} a^{2}h[/tex]

Where:

a²= base area h = height

2.598076 x 8.15 x 4 = 84.70cm³

To learn more about prisms, please check: https://brainly.com/question/8890358

Answer:

32.6 cm³ for K12

HELP PLEASE!!!!!!!!!!!

The sum of all but one interior angle of an octagon is 776°. The measure of the final interior angle is ___ degrees.

Answers

the sum of all interior angles in a polygon, regular or not is

180( n - 2), n = number of sides

now, this is an octagon, with 8 sides, so it has a total of interior angles of 180( 8 - 2) or 180(6) = 1080.

we know the sum of all BUT one is 776°, so the last one must be 1080° - 776° = 304°.

help i am bad at geometry

Answers

Answer:

115.5 cubic meters.

Step-by-step explanation:

First find the are which is 10.5 because are is base times width divided by 2

The multiply the are with the height. 10.5 times 11 equals 115.5 cubic meters.

How many equilateral triangles are there in a regular hexagon.

Answers

There are total 6

Look at the attachment for proof

If we join all three diagonals we get 6 equilateral triangle

Answer:

There are 6 equilateral triangles in a regular hexagon.

Step-by-step explanation:

A regular hexagon can be dissected into 6 equilateral triangles by adding a center point .

Choose all lengths that are equal to

3 yards 16 inches.


A.

124 in.


B.

4 yd 4 in.


C.

3 yd 1 1/2 ft


D.

2 yd 52 in.


E.

10 ft 4 in.

(15 points)

Answers

Answer: The answer you would be looking for is A. D. E.

Step-by-step explanation:

I hope i helped and can i have brainliest please <3

Hello people ~
what's the area of a rectangle whose width is 16m and length is 13m?​

Answers

Answer:

208 m²

Step-by-step explanation:

[tex]16 \: m\times 13 \: m = 208 \: {m}^{2} [/tex]

5. What is the value of x and y?

a.
b.
c.
d.

Answers

Answer:

30[tex]\sqrt{2}[/tex]

Step-by-step explanation:

The triangle given is a special right triangle with angle measures as follows:

45-45-90

The side lengths for this special triangle is represented with a-a[tex]\sqrt{2}[/tex]-a[tex]\sqrt{2}[/tex]

a represents the side length that sees hypotenuse and it is 30 so x and y

30[tex]\sqrt{2}[/tex]

Find the y-intercept and the slope of the line.
Y=-4x-3

Answers

Answer:-

Slope:-

-4

y-intercept:-

(0,-3)

Solution:-The equation of this line is written in Slope-Intercept Form, which looks like so:-y=mx+bIn this formula, m stands for the slope of the line, and b stands for the y-intercept.Please remember that the slope is the line's rise (the amount of units we move up, or "rise" divided by its run (the amount of units we move left or right, and the y-intercept is the point where the line intersects the y-axis. (0, b)Also, please notice that m is the coefficient of x, and b is the constant.Therefore, the slope of the line is equivalent to -4, and the y-intercept is (0, -3).

Hope it helps.

Do comment if you have any query.

Answer:

Slope: 4; y-intercept: -3

Explanation:

To find the slope of the line, we will look at the number in front of x.

That number is -4. Hence, the slope is -4

Now, the y-intercept is the constant.

The constant is -3.

Hence, the y-intercept is -3.

Select all that apply.

Which pairs of angles are supplementary?




1 and 6
5 and 7
5 and 8
2 and 3

Answers

Answer:

1 and 6

5 and 7

Step-by-step explanation:

Supplementary angles are 180 degrees and so is a linear pair

1 and 6 add up to 180 degrees meaning they are supplementary. Angle 1 and angle 2 are a linear pair so 180-120=60 which is the degree of angle 1, angle 2 corresponds to angle 6, so angle 1 + angle 6 would equal 180 degrees. (120+60)

5 and 7 are a linear pair which automatically makes them supplementary

The others are vertical angles which don't add up to 180. (120+120=240)(60+60=120)

Use the points in the diagram to name the figure.

Answers

D) Line JK

<----->

JK

Hope it helps :)

A scale model of a ramp is a right triangular prism as given in this figure. In the actual ramp, the triangular base has a height of 0.5 yards.

What is the surface area of the actual ramp, including the underside?

Enter your answer as a decimal in the box.



The answer is 7.2 I just didnt see anyone ask this

Answers

The surface area of the figure is 720 square inches

How to calculate the surface area of a ramp?

The surface area of a figure is the sum of all the area of its faces.

For the given diagram, it consists of 2 triangular faces and 3 rectangular faces

Surface area= (5 * 24) + 2(13*12) + 24 * 12

Surfacee area = 120  + 312 + 288

Surface area = 720 square inches

Hence the surface area of the figure is 720 square inches

Learn more on surface area here: https://brainly.com/question/76387

How would three billion, nine hundred seventy-six thousand, twelve be written in standard form?

Answers

Step-by-step explanation:

3.000976×10⁹ would be how I will write in standard form

How do graphs help you understand the data?

Answers

Answer:

Sometimes, data can be better understood when presented by a graph than by a table because the graph can reveal a trend or comparison.

Find the mean absolute deviation for:1, 1, 2, 4, and 7
a) 1
b) 2
c) 3
d) 0

Answers

Answer: C) 3
To get mean deviation it is nessasary to get the number between the two center numbers

A line has a rise of 3 and a run of 12. What is the slope?
O 1/3
O 4
O 1/4

Answers

1/4 is the answer
Explanation- 3 divided by 12 is 4 therefore 1/4 of 12 is 3 making 1/4 the slope
Other Questions
can someone answer this? What is (-3+5x)= 9? What region(s) of the world do you think has the HIGHEST gender Inequality? Why would a performer say some words louder than others when reading a poem aloud? A. to help the rhythm B. to highlight a rhyme C. to add to the imagery D. to provide emphasis pleaseeeeeeeeee i need some help here For which value of theta is sine theta = negative 1?A unit circle is shown. A radius with length 1 forms angle theta in the first quadrant.StartFraction pi Over 2 EndFractionPiStartFraction 3 pi Over 2 EndFraction2 pior (A.K.A)For which value of is sin = -1?A. /2B. C. 3/2D. 2 allie went trick - or - treating one day. she wanted to dress up as a princess but her costume costs $340. she only as $119. how much money does allie need for her costume?my sister needs help.....ughhhh shess soo annoyinggggg like dam SPANISH HW PLEASE HELP ME!!!!!!!! god bless you amen ! How do you solve this? I don't understand ted collected 22 pounds of aluminum cans, how many ounces of aluminum cans did he collect? Please help quick if possible (using the image below) Find the axis of symmetry _________________ can result in a jail sentence while ____________________ can result in a prison sentence. Group of answer choices Misdemeanors; felonies Civil offenses; criminal offenses Tort cases; probate cases Capital cases; tort cases Melanie is designing a new board game, and is trying to figure out all the possible outcomes. How many different possible outcomes are there if she rolls a fair die in the shape of a pyramid that has four sides labeled 1 to 4 and spins a spinner with 5 equal-sized sections labeled Monday, Tuesday, Wednesday, Thursday, Friday? divide 100 in the ratio 2:3. calculate the kinetic energy of a 71 kg man running at 5 m/s i need help in these questions please Does anyone know what type of angle this is? In quadrilateral two angles are equal. The third angle is equal to the sum of the two equal angles. The fourth angle is 60degrees less than twice the sum of the other three angles. Find the measures of the angles in the quadrilateral. Valeria's living room is 9 meters wide and 10 meters long. She wants to install green carpet that costs $5.00 per square meter. How much will it cost to buy enough carpet for the living room? why was Ulysses S Grant given command of the Union armies in 1864? (NO links) Whats the answer????