8 more than twice a number is 18.

Answers

Answer 1

Answer:

18 + (18 more than) 2x (twice a number) = (is) 8

18+2x=8

2x=-10 (subtract 18 from both sides)

x=-5 (divide both sides by 2)

not my work


Related Questions

help me out please :)

Answers

C. Lime segments that have the same length

7,-3,12,-0.8,0.8,-10,-2 if these numbers represent elevations in meters which is the farthest away from sea level?

Answers

Answer:

-10 would be correct

Step-by-step explanation:

-10

How many solutions does the given system of equations have?

y=1/2x + 4 y=-x+10

1)Infinitely many solutions
2)Two solutions
3)No solution
4)One solution

Answers

Answer:

2

Step-by-step explanation:

I think the correct answer would be 2

I need help please thank you

Answers

Answer:

See attachment

Step-by-step explanation:

We can graph this line using the equation given to us. The equation is in slope-intercept form, [tex]y=mx+b[/tex]. In this form, [tex]m[/tex] = slope and [tex]b[/tex] = the y-intercept.

So, we can tell that the slope is -[tex]\frac{1}{5}[/tex] and the y-intercept is (2,0).

We begin by plotting on the graph the y-intercept, (2,0).

The slope also equals the [tex]\frac{rise}{run}[/tex]. The slope is negative, so the line will slope down. From the point we have plotted, we will rise negative 1 unit. This means to move down 1 unit. From this point, we will run 5 units. Because the line is negative, we will move 5 units to the left, not the right. We land on point (5,1).

Now, we will draw a line from these two points. This is the line shown in the equation.

Good luck ^^

Find x, y, and z
3
7
Z

Answers

Step-by-step explanation:

If x=3, y=7 when x+y=z

z=3+7

z=10

Line x and line z are straight lines.

Which pair of angles are vertical?

O Za and Zd

Zb and Zd

Za and ZD

O Zc and Ze

Mark this and return

Answers

Answer:

[tex]\angle c[/tex] and [tex]\angle e[/tex]

Step-by-step explanation:

Given

See attachment

Required

Identify the vertical angles

Keynotes

Vertical angles opposite one anotherVertical angles are equal to one another

Using the keynote as a reference, we have the following observation from the attachment:

[tex]\angle c[/tex] and [tex]\angle e[/tex] are opposite

[tex]\angle c[/tex] and [tex]\angle e[/tex] are congruent

Hence:

[tex]\angle c[/tex] and [tex]\angle e[/tex] are vertical

(d) is correct

Help please I forgot how to do it

Answers

Devyde number with any digital

length=2
width=2
height=3

Answers

Answer:

12

Step-by-step explanation:

The computation of the volume of the rectangular prism is shown below:

As we know that

The  volume of the rectangular prism is

= length × width × height

where

Length is 2

width be 2

And, the height be 3

So, the  volume of the rectangular prism is

= 2 × 2 × 3

= 12

Pls help meeeee and thank you so so much i don’t know how to do this

Answers

Answer:

The new coordinate after translating the figure are : (- 1 , -2)

Step-by-step explanation:

By using the following a translation mapping rule for this problem:

( x,y) → (x -2, y - 5)

#4) Solve the following systems of equations by any method.

x - y = 7

3x + y = 1


A (2,-5)
B (3,-4)
C (2,5)
D (-4,3)​

Answers

A (2,-5) i used the substitution method

*PLEASE HELP*
A magazine contains fourteen pages. You open to a random page.

Find the probability that the page number is 3 or 7.


Answers

“Or” meaning they want both. Since they each represent 1/14 add them together. 1/14+1/14=2/14. Then simplify 2/14 to get 1/7

So, the answer the 1/7

P=3/14 answer for a

P=7/14
=1/7
If asked just put as a fraction and the. Reduced.

What is the measure of angle 4?
angles 1,3,5,6,7, and 8 are 73 degrees. angles 2 is 107 degrees

Answers

Answer:

34 Deg

Step-by-step explanation:

Since the Triangle is isoceles, each of the internal base angle = 180-107=73

Sum of internal angles =180,  Angle4= 180-(73+73)= 180-146=34

What value of y makes the equation 4x – 3y = 17 true, when x = 2?

Answers

Answer:

y = -3

Step-by-step explanation:

4x – 3y = 17

x = 2

4(2) - 3y = 17

8 - 3y = 17

-3y = 9

y = -3

Answer:

y= -3

Step-by-step explanation:

if x =2, substitute

4(2) - 3y = 17

8-3y = 17

(add 3y to both sides)

8= 17 + 3y

(subtract 17 from both sides)

8-17=3y

-9= 3y

(divide both sides by 3)

-9/3=y

y= -3

What is the value of this expression when c=-4 and d = 10?
1/4(c3+d2)

Answers

Question:-

What is the value of this expression when c = -4 and d = 10 ? [tex] \frac{1}{4} [/tex] (c³ + d²)

Answer:-

Given:-

[tex] \frac{1}{4} [/tex] (c³ + d²) where c = -4 and d = 10

To Find:-

The value of the expression [tex] \frac{1}{4} [/tex] (c³ + d²)

Solution:-

[tex] \frac{1}{4} [/tex] (c³ + d²) [Given expression]

Now, putting the value of c = -4 and d = 10 , we get,

[tex] \frac{1}{4} [/tex] { (-4)³ + (10)² }

[tex] \frac{1}{4} [/tex] ( -64 + 100 )

[tex] \frac{1}{4} [/tex] ( 36 )

[tex] \frac{1}{4} [/tex] × 36

[tex] \bf = \: 9 \: ( Answer ) [/tex]

Elizabeth was practicing with her bow an arrow. She made 11 of the 12 shots right in the center. What percentage did make in the center? Round your answer to the nearest whole percentage.​

Answers

92%
Aka
11/12= 91.6 rounded is 92

Someone plz help me, I need help with this so bad.

Answers

Answer:

1. Corresponding Angles

2. Alternate Interior Angles

3. Alternate Exterior Angles

4. If <a=25 then <h will equal 25 because they are congruent

1-corresponding angles
2-alternative interior angles
3- same side exterior angles
4-155

5. Find the volume of the cylinder. Leave your
answer in terms of t.
8 cm.radius
8 cm.height

Answers

Answer:

[tex]512\pi[/tex]

use the formula

The surface of a pedestrian bridge forms a parabola. Let the surface at one side of the bridge be represented by (4,0) and the surface at the other side be represented by (8,0). The center of the bridge is 3 feet higher than each side and can be represented by a vertex of (6,3). Write a function in vertex form that models the surface of the bridge.

Answers

Answer:

y = -3/4(x - 6)^2 + 3

Step-by-step explanation:

y = ax^2 + bx + c

(4, 0)

16a + 4b + c = 0     Eq. 1

(8, 0)

64a + 8b + c = 0     Eq. 2

(6, 3)

36a + 6b + c = 3      Eq. 3

We have a system of three equations in three variables.

Eq. 2 - Eq. 1

48a + 4b = 0      Eq. 4

Eq. 2 - Eq. 3

28a + 2b = -3     Eq. 5

Eq. 4 - 2 * Eq. 5

-8a = 6

a = -6/8

a = -3/4

48a + 4b = 0

48(-3/4) + 4b = 0

4b = 36

b = 9

16a + 4b + c = 0

16(-3/4) + 4(9) + c = 0

-12 + 36 + c = 0

c = -24

The equation of the parabola is

y = -3/4 x^2 + 9x - 24

y = -3/4(x^2 - 12x + 32)

y = -3/4(x^2 - 12x + 36) + (-3/4)32 - (-3/4)(36)

y = -3/4(x^2 - 12x + 36) -24 + 27

y = -3/4(x - 6)^2 + 3

I need help please. Honestly I barely understand this.

Answers

Answer:

[tex] - 12288 \div {2}^{11} = - 6 \\ forth \: answer \: is \: correct[/tex]

Answer:

4th option

Step-by-step explanation:

The nth term of a geometric sequence is

[tex]a_{n}[/tex] = a₁ [tex](r)^{n-1}[/tex]

where a₁ is the first term and r the common ratio

To find a₁ use a₁₂ = - 12288 , then

a₁ [tex](2)^{11}[/tex] = - 12288 , that is

a₁ × 2048 = - 12288 ( divide both sides by 2048 )

a₁ = - 6

Then the explicit formula is

[tex]a_{n}[/tex] = - 6 . [tex]2^{n-1}[/tex]

find the constant terms 5x^2+6x+c

Answers

Constant terms are just numbers (no x). The answer is 2

Which of these equations has no solutions to the system ? please and thank you :]

A. y=2x−3 and 2x + y = -3

B. y=2x−3 and -2x + y = 3

C. y=2x−3 and 2x + y = 3

D. y=2x−3 and -2x + y = -3

Answers

The correct answer is d

Answer:

the answer is c

Step-by-step explanation:

no soloutions have the same slope but different intercepts so it cannot be d because the slopes are different.

Brooklyn has a points card for a movie theater. She receives 35 rewards points just for signing up. She earns 14.5 points for each visit to the movie theater. She needs at least 45 points for a free movie ticket. Which inequality can be used to determine x x, the minimum number of visits Brooklyn needs to earn her first free movie ticket?

Answers

Answer:

35+14.5x≥45

Step-by-step explanation:

35+14.5x≥45

What is the percentage of decrease from 2 to 1

Answers

I believe it would be -0.5, because you’re going down by half. If I’m incorrect, I’m sorry.

What is the solution set of the equation (x - 2)(x - a) = 0

Answers

Answer:

x=2, x=a

Step-by-step explanation:

Determine area of polygon with side length of 10

Answers

Area: 1119.615

Formula: A = 3 x (2 + √3) x a²

How many tenths are equal to 1/2+4/5?

Answers

answer: 13

1/2+4/5= 13/10 so the answer would be that 13 tenths equal 13/10

please help me !!!! trigonometric ratios !!!

Answers

Answer:

Step-by-step explanation:

If the questions  is    "What's x" then the answers is...

Use SOH CAH TOA to recall how the trig functions fit on a triangle

SOH: Sin(Ф)= Opp / Hyp

CAH: Cos(Ф)= Adj / Hyp

TOA: Tan(Ф) = Opp / Adj

use CAH

Cos(x) = 46/60

x = arcCos(46/60)

x = 39.9445 °

Answer:

[tex]\displaystyle 40°[/tex]

Step-by-step explanation:

[tex]\displaystyle sec^{-1}\:1\frac{7}{23} = x; 39,94450519...° \\ \\ \boxed{40° \approx x}[/tex]

OR

[tex]\displaystyle cos^{-1}\:\frac{23}{30} = x; 39,94450519...° \\ \\ \boxed{40° \approx x}[/tex]

I am joyous to assist you at any time.

Aisha collects 1p coins and 2p coins. 24 of these are 1p coins. The probability of choosing a 2p coin at random is 1/2 How much money does she have in total?

Answers

Answer:

Aisha has 24 2p coins and 24 1p coins, then she has in total:

2p*(24) + 1*p*(24) = 48p + 24p = 72p

Step-by-step explanation:

Suppose that we have a set of N elements in a bag (if the bag is closed and we put our hand inside to grab one element, we could not distinguish them apart), and K of these elements have a given property (for example, these are red).

The probability of selecting at random one of these red elements is equal to the quotient between the number of elements with that property (K) and the total number of elements in the bag (N)

P = K/N

Now let's go to our problem.

We have 24 1p coins.

We have X 2p coins.

Then the total number of coins is: (24 + X)

We know that the probability of choosing at random a 2p coin is then:

P = X/(24 + X)

And we know that this is equal to 1/2

Then:

X/(24 + X) = 1/2

X = (1/2)*(24 + X) = 24/2 + X/2

X = 12 + X/2

X - X/2 = 12

X/2 = 12

X = 2*12 = 24

Then Aisha has 24 2p coins.

Aisha has 24 2p coins and 24 1p coins, then she has in total:

2p*(24) + 1*p*(24) = 48p + 24p = 72p

Plss help me out!!!!!!

Answers

Answer:

its D because they all match the sides

will give brainliest!!

Caleb made a sand castle of a pyramid when he was on vacation. His pyramid had a square base with side lengths of 2 feet and a height of 5 ft. How much sand did he use?​

Answers

20ft, just multiply the width, height, and length, which is 2x2x5
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