"twice a number plus 4 is 8"

Answers

Answer 1
2*2=4
4+4=8
Answer=2
Hope this helps:)
Answer 2

Answer:

2n + 4 = 8

Step by Step explanation:

"twice a number" means to multiply 2 by a number

"plus 4" is telling you to add 4 to 2n

"is 8" means equals 8

so, that means 2n + 4 = 8

I hope i helped :)


Related Questions

A freezer has a volume given by the trinomial y^3-2y^2-35y. What are the possible dimensions of the freezer? Use factoring.

Answers

Answer:

Step-by-step explanation:

[tex]y^{3} - 2y^{2} - 35y[/tex]

[tex]y(y^{2} - 2y - 35)[/tex]

[tex]y(y - 7)(y + 5)[/tex]

Final answer:

The possible dimensions of the freezer are given by the factors y, (y - 7), and (y + 5), representing the length, width, and height of the freezer respectively.

Explanation:

The question is asking for the possible dimensions of a freezer with a volume represented by the trinomial y^3-2y^2-35y. To find the dimensions, we will factor this expression.

We can factor out the common factor y first:

y(y^2 - 2y - 35)

Next, we need to factor the quadratic equation. We look for two numbers that multiply to give -35 and add to give -2. These numbers are -7 and +5.

y(y - 7)(y + 5)

Now we have the factors of the trinomial. These factors represent the possible dimensions of the freezer: a length of y units, a width of (y - 7) units, and a height of (y + 5) units, where y is a positive real number because physical dimensions must be positive.

A woman traveled 2438.1 miles in 17 hours 20 minutes. Find the average speed of her light in miles per hour (Change 17 hours 20 minutes into hours and use the formula
d=rt)

Answers

Answer:

+140.68 m/h

Step-by-step explanation:

17.33 h

2438.1/17.33 = 140.68

+140.68 m/h

Final answer:

The woman's average flight speed is 140.7 miles/hour, calculated by using the formula for speed (v = d/t) on the provided distance (2438.1 miles) and the converted time (17 hours 20 minutes to 17.333 hours).

Explanation:

Calculating Average Speed

The question is asking to calculate the average speed of a woman's flight given the distance traveled and the time taken. To convert the time from hours and minutes to just hours, we use the fact that 20 minutes is ⅓ of an hour (20/60). Therefore, 17 hours 20 minutes is equivalent to 17 + ⅓ = 17.333 hours.

We use the formula for speed, v = d/t, which tells us that speed (v) is the distance (d) divided by the time (t). Plugging in the given values:

Distance (d) = 2438.1 miles

Time (t) = 17.333 hours

Applying these values to the formula gives us:

v = 2438.1 miles / 17.333 hours = 140.7 miles/hour.

So, the final answer is that the woman's average speed during her flight was 140.7 miles/hour.

Which three dimensional figure has double the number of edges than faces

Answers

Answer:cube

Step-by-step explanation:

Answer:

Cube

Step-by-step explanation:

Take a cube, or draw one. You can count the faces.

Knowing that a cube has 6 faces, we will count the edges.

There are 12 edges on a cube.

So, 12÷6=2.

Anything that you multiply by two is half the product.

show all work.
-5X - 16 = 8x - 3​

Answers

Good evening ,

______

Answer:

x= -1

____________________

Step-by-step explanation:

-5X - 16 = 8x - 3​

⇔-5x-8x = -3+16

⇔-13x = 13

⇔x = -1

Answer:

x = -1

Step-by-step explanation:

-5X - 16 = 8x - 3​

add 5x on both sides

⇒ -5X - 16+5x= 8x -3 + 5x    

⇒ -16 = 13x -3

add 3 on both sides

⇒-16 + 3 = 13x -3 +3

⇒ -13 = 13x

divide both sides by 13

⇒ -13/13 =13x/13

∴ -1 = x

Mitch is buying candy bars for his friends. He wants to give 2 bars to each friend, and wants to have 10 spare bars. He can afford to buy 36 candy bars. How many friends can he treat?

Answers

Answer:

Mitch can give 2 candy bars to 13 friends

Step-by-step explanation:

first, since he wants 10 left over, you subtract 36-10 which is 26. Then, since he wants to give each friend 2 candy bars, you divide 26 by 2 which equals 13.

sammy's bucket holds 2,530 milliliters of water. Marie's bucket holds 2 liters 30 milliliters of water. Katie's bucket holds 2 liters 350 milliliters of water. Whose bucket holds the least amount of water.​

Answers

Final answer:

After converting all volumes to the same unit (milliliters), we can compare them. Sammy's bucket holds 2,530 milliliters, Marie's bucket holds 2,030 milliliters, and Katie's bucket holds 2,350 milliliters. Therefore, Marie's bucket holds the least amount of water.

Explanation:

To answer this question, we first need to convert all the volume measurements to the same unit. In this case, we'll convert everything to milliliters. We know that 1 liter equals 1000 milliliters. Therefore, Marie's bucket holds 2,030 milliliters (2 liters equal 2000 milliliters plus 30 milliliters), and Katie's bucket holds 2,350 milliliters (2 liters equal 2000 milliliters plus 350 milliliters).

Now that all the volumes are in the same units, we can compare them. Sammy's bucket holds 2,530 milliliters, Marie's bucket holds 2,030 milliliters, and Katie's bucket holds 2,350 milliliters.

From this comparison, we can see that Marie's bucket holds the least amount of water.

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How to write 4÷873 show your work

Answers

You can write it as 4/873. This is the fraction form.

Hope this helped

Answer:

218.25

Step-by-step explanation:

Write the simplified expression.

Answers

Answer:

343

Step-by-step explanation:

Let's start simplifying with the numerator:

(15-8)⁹

=7⁹

=40353607

Now simplify the denominator :

[(5+2)³]²

=[(7)³]²

=[343]²

=117649

Now combine them :

(15-8)⁹/ [(5+2)³]²

=40353607 / 117649

=343

PLEASE HELP!!!
below is the graph of a system of two linear equations.
what system does it represent, and what is the solution of this system ?

Answers

Answer:

A

Step-by-step explanation:

You must first find a Y value and plug it into both equations and then plug the solution in then simplify to see if they equal each other or not. the one that equals to each other is the solution

What is the product?
(2x - 1)(x+4)
2x?-4
2x+4
2x+7-4
2x? - 7x-4

Answers

The answer is :

2x^2 + 7x - 4

Tickets to the country fair cost $8 for an adult and $5 for a child. If you have 15% discount card, how much will 2 adult tickets a d 2 child tickets cost?

Answers

Answer:

$22.10

Step-by-step explanation:     Cost of tickets without discount $8×2+5×2=16+10=26

Cost with discount: 26× 100−15/100 = 26×85/100 = 2210/100 = 22.10.

Hope this helps :)

List 3 things that you should consider when choosing a career.

Answers

Answer:

1.)Will this career choice be a good fit for you?

2.)Does choosing a profession in this field require you to relocate?

3.)Will this profession pay you what you want or need to survive?

Step-by-step explanation:

Decision-making involves balancing the pros and cons of what you have been researching and experimenting with. Will this career choice be a good fit for you? Does choosing a profession in this field require you to relocate? Will this profession pay you what you want or need to survive? Honest answers to these questions will help you make the best decision. Also, consider when you plan to enter the industry. If it is a job that requires a lot of training or years of education, this time may be far in the future, so you need to be flexible with your plans and make allowances for changes as they come.

Answer: salary, education requirements, work/life balance

Step-by-step explanation:  edge 2022

Maricia has 412 bouquets of flowers for centerpieces.She uses 8 flowers for centerpiece.How many centerpieces can she make?


Interpet the remainder to solve?

Answers

Answer:

She can make about 51 centerpieces in total

c(n)=−6+5(n−1) find the 8th term in the sequence

Answers

Answer:

Step-by-step explanation:

n = 8

c(n) = -6+5(n - 1)

c(8) = -6+5(8 - 1)

c(8) = -6+5( 7)

c(8) = -6+5(7)

c(8) = -6+35

c(8) =  29

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

Here is the series.

-6

-1

4

9

14

19

24

29

Solve for x.
46
12x - 3
5x + 7

With draw angels

Answers

Answer:

12x-3=

Step-by-step explanation:

x=12+3

=15

=5×+7=

×=7-5

=2

5

Final answer:

To solve for x, one must understand the type of equation provided. Unfortunately, the original question does not provide clear context or an equation. Therefore, various methods such as algebraic manipulation, proportions, or the quadratic formula may be used to solve for x depending on the equation at hand.

Explanation:

The information provided in the question seems fragmented and lacking context. To solve for x in algebra, one would typically rearrange the equation and isolate the variable x. Here are various ways that might be relevant:

For linear equations, you can divide or multiply both sides of the equation by a number to isolate x.

When dealing with proportions, like 12 inches/1 foot = x inches/3.5 feet, you would cross multiply to solve for x.

If given a quadratic equation such as ax² + bx + c = 0, you can use the quadratic formula to find the roots or solutions for x.

In cases where the provided information is insufficient, clarifying the original equation or context is essential to provide an accurate solution.

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A car salesperson is paid a base salary of
$35,000 plus 8% of sales. What are the
sales needed to have an annual income
greater than $65,000?

Answers

Final answer:

To have an annual income greater than $65,000, a car salesperson needs to achieve sales of at least $375,000.

Explanation:

To determine the sales needed to have an annual income greater than $65,000, we need to set up an equation.

Let's represent the sales amount as 'x'.

The equation will be: $35,000 + 0.08x > $65,000.

To isolate 'x', subtract $35,000 from both sides: 0.08x > $30,000.

Finally, divide both sides by 0.08 to find the sales needed: x > $375,000.

Therefore, the sales needed to have an annual income greater than $65,000 is $375,000.

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Solve the equation for y.
23 = 5x – 2y​

Answers

Answer:

Step-by-step explanation:

23 = 5x - 2y.

2y = 5x -23. Rearrange to make y the subject

y = (5/2)x - 23/2

23 = 5x – 2y

move 5x to the other side

sign changes from +5x to -5x

23-5x= 5x-5x-2y

23-5x= -2y

divide both sides by -2 to get y by itself

23/-2-5x/-2= -2y/-2

Answer:

y=-23/2+5x/2 or y=5x/2-23/2

Factor the expression completely
[tex] { \times }^{2} - 2x - 63 [/tex]

Answers

use form x^2 + bx + c
b = -2
c = -63
find a pair of integers whose product equals c and sum equals b

so, find a product that equals -63 and a sum that equals -2

-9 + 7 = -2
-9 • 7 = -63

write in factored form ->
(x - 9)(x + 7)

Help me please!! 30 points

Answers

Answer:

1. 0.03

2. 0.066

3. 0.20833

4. 0.42105263157

Step-by-step explanation:

K=y/x
1. Y=k•x
Y= 50•1.5
Y= 50•15/10
Y = 75

2. x=y/k
x= (3•3/4)/(1/4)
x= (15/4)• 4
x= (15•4)/4
x= 15

3. Y= k•x
Y= (1/2)•(2•4/5)
Y= (1/2)•(14/5)
Y= 14/10
Y=7/5
Y= 1.4

4. x= y/k
x= 38/16
x= 2.375
x=

What is the inverse of this given function?

Answers

to get the inverse of any expression, we start off by simply doing a quick switcheroo on the variables, and then solving for "y".

[tex]\bf g(x)=4y\implies \stackrel{switcheroo}{g(y)=4x}[/tex]

What is the EXACT area of a circle that has a radius of 1/2 inch?

Answers

Answer:

π/4 in^2.

Step-by-step explanation:

The exact value = π r^2

= π * (1/2)^2

= π/4 in^2.

Hugo received $100 for his birthday. He
then saved $20 per week until he had
a total of $460 to buy a printer. Use an
equation to show how many weeks it took
him to save the money.​

Answers

Answer:

18 weeks

Step-by-step explanation:

Total amount of money saved up to buy the printer is T(w), where w is the number of weeks.

Then T(w) = $100 + ($20/wk)w

Setting this equal to $460, we solve the resulting equation for w to determine the number of weeks it took Hugo to save up $460 total:

$460 = $100 + ($20/wk)w, or

$360 = ($20/wk)w, or

w = $360/($20/wk) = 18 weeks

Final answer:

Hugo's savings over time can be represented by the equation 100 + 20w = 460. Here, w is the number of weeks saved. Solving this equation shows that Hugo saved for 18 weeks to have enough money for the printer.

Explanation:

The problem can be solved by setting up an equation related to Hugo's savings. Hugo had $100 and he saved $20 per week until he had a total of $460.  If we let w represent the weeks, we could represent this situation with the equation 100 + 20w = 460.

To solve the equation, we subtract 100 from both sides giving us 20w = 360. Then divide both sides by 20 to get w = 18. Therefore, it took Hugo 18 weeks to save enough money for the printer.

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Four lines are drawn on a coordinate plan
trapezoid WXYZ

Answers

Answer:

Step-by-step explanation:

Given a trapezoid WXYZ. In a trapezoid one pair of opposite sides are parallel .Parallel lines have same slope.Slope of line parallel to x axis is 0.If the line starts at the bottom left and goes towards the top right it has negative slope.

All that is true for Trapezoid WXYZ are:

Line WZ has the same slope as line XY.

Line XW has a lesser slope than line YZ.

Line ZW has the same y-intercept as line WZ.

Line XY has a greater y-intercept

What they said lolll

g(x) = x-6
If the opposite of g(x) is -g(x),
then -g(x) =

Answers

Answer:  The required expression for -g(x) is -x+6.

Step-by-step explanation:  We are given the following function :

[tex]g(x)=x-6.[/tex]

Also, the opposite of g(x) is -g(x).

We are to find the expression for g(x).

According to the given information, we have

[tex]-g(x)\\\\=-(x-6)\\\\=-x+6.[/tex]

Thus, the required expression for -g(x) is -x+6.

Berta wants to plant 1,224 trees in 8 equal rows. How many trees will go in each row?​

Answers

Answer: 153 trees in each row

Step-by-step explanation:

You would divide 1,224 by 8 to get 153 trees in each row.

I need help Please!

Sally has 13 coins in her pocket. Nine of the coins are nickels, and the
rest of the coins are dimes. How many of the coins are dimes?

a.
Identify what is being asked.

b.
Strategize (What variable will you use to represent the unknown?)

c.
Set up (Write an equation)

d.
Solve (Find the solution)

e.
Check
(Does your answer make sense?)


Don't answer if you aren't going to answer all the questions!

Answers

Answer:

To solve, use a simple one-step equation

Known: Number of coins; Number of Nickles.

Unknown: Number of Dimes.

a) To find the number of Dimes

b) Use x (or virtually any letter) to represent the unknown number of dimes

c) 9+x=13

d) Subtract 9 from both sides to cancel out the 9 and isolate the variable on one side. x=4

e) 9+4=13, so yes, the answer is correct

A. How many dimes is there out of the 13 coins.
B. D= dimes
C. 9+d=13
D. 9+d=13
Subtract 9 from 13
13-9=4
D=4
9+4=13

Write an equation of a line in slope intercept form (y = mx + b) going through the points
(-2, 0) and (4, -3). Show your work for full credit.

Answers

Answer:

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

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + b ( m is the slope and b the y- intercept )

Calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (- 2, 0) and (x₂, y₂ ) = (4, - 3)

m = [tex]\frac{-3-0}{4+2}[/tex] = [tex]\frac{-3}{6}[/tex] = - [tex]\frac{1}{2}[/tex], thus

y = - [tex]\frac{1}{2}[/tex] x + b ← is the partial equation

To find b substitute either of the 2 points into the partial equation

Using (- 2, 0 ), then

0 = 1 + b ⇒ b = 0 - 1 = - 1

y = - [tex]\frac{1}{2}[/tex] x - 1 ← in slope- intercept form

Am I right and if not what's the answer.

Answers

Answer:you are so right

Step-by-step explanation:

The table shows the price of potatoes. The price varies directly with the weight in pounds.


Explain what the origin represents in this situation.


What is the unit rate for this direct variation? If the unit rate is less than one, put a zero to the left of the decimal point.

Answers

Answer:

The origin represents no potatoes, thus no money.

The variation is 0.99 per pound.

Step-by-step explanation:

If the price of 3 pounds is $2.97, that means each pound costs $0.99

So, the price of 4 pounds of potatoe, is 4 x $0.99 = $3.96

Same for 6 and 10:

6 x $0.99 = $5.94

10 x $0.99 = $9.90

So, the variation is $0.99 for pound of potatoe

Answer: The unit rate is $0.99.

and the origin represents no potatoes means no money i.e. (0,0).

Step-by-step explanation:

Since we have given the table.

Cost of 3 potatoes = $2.97

Cost of 4 potatoes = $3.96

Since there is direct variation.

So, unit rate would be

[tex]\dfrac{2.97}{3}=\dfrac{3.96}{4}=\$0.99[/tex]

Hence, the unit rate is $0.99.

and the origin represents no potatoes means no money i.e. (0,0).

CAN SOMEONE HELP ME WITH THIS QUESTION?????????????????????????

Answers

The first one is Function 4. The y intercept is wherever the slope intercepts the Y axis, which would only be once if it is a true function.  You can see that function 1's y intercept is 5. Function 2's is-4. Function 3's is -2. Function 4 tells you it's/ y intercept is 1. The one that's closest to 0 is number 4. As for the second one, the answer is function 1. I'm not positive on the third one, but can say function 4 is an answer.

Answer:

Step-by-step explanation:

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