You have a certain number of books in your library. You bought more books to triple your amount, then decide to give 14 away to your local school. You then give half of your remaining books away to charity. You end with 8 books left. How many books did you start with?

Answers

Answer 1

Answer:

10 :)

Step-by-step explanation:

(3x - 14) / 2 = 8

3x - 14 = 16

3x = 30

x = 10


Related Questions

d/6+f/3=4 solve for d
step by step and accurate answer plz​

Answers

Answer:d/6+f/3=4 solve for d

step by step and accurate answer plz​

Step-by-step explanation:d/6+f/3=4 solve for d

step by step and accurate answer plz​

Please help me simplify this equation!

Answers

X^2(x+4) x 3x^2(x-1)
(X^3+4x^2) x (3x^3 -3x^2)
3x^6 -3x^5+12x^5 -12x^4
3x^6 +9x^5-12x^4
I think that’s how you do it

A rental company rents big-screen televisions for $22 down plus $4 a day. If the final bill is $46, how many days did you rent the television for?

Answers

Answer:

let the x no of days the television is rented

22+4x=46

4x=46-22

4x=24

x= 6days

Step-by-step explanation:

Which term describes the solution to a multiplication problem? The describes the solution to a multiplication problem.

Answers

Answer:

The solution to a multiplication problem is called a product.

Step-by-step explanation:

What's the answer for this? I can't find the answer. ​

Answers

I believe the answer is 3/4.

Answer:

1/4+2/4=3/4 I believe so

solve the equation 2 3/5 × 1 3/7

Answers

Answer:

26/7

Step-by-step explanation:

[tex]2\frac{3}{5} * 1\frac{3}{7}[/tex]=

[tex]\frac{13}{5}* \frac{10}{3} =[/tex]

[tex]\frac{130}{35}[/tex]=

simplify= 26/7


[tex] \sqrt[3]{8 \times 10 {}^{15} } [/tex]
I'm not really sure how to start.​

Answers

Answer:

see explanation

Step-by-step explanation:

[tex]\sqrt[3]{8.10^{15} }[/tex]

= [tex]\sqrt[3]{8}[/tex] × [tex]\sqrt[3]{10^{15} }[/tex]

= 2 × [tex]10^{5}[/tex]

= 200000

The area of the rectangle
shown is 54 square units.
What is its perimeter

Answers

Answer:

perimeter of a square= 4 times square root of area

[tex]4 \sqrt{54} = 29.39[/tex]

Find the length of side AB.
Give your answer to 1 decimal place.
12 cm
62°
А
B

Answers

The length of the side labelled, AB as represented in the image attached to the task content is; 5.63.

What is the length of the side AB given the angle B and side BC as in the image attached to the task content?

It follows from the task content that the length of the side AB is to be determined from the right triangle given in the task content.

Since the angle given is; B whose measure is; 62°. It consequently follows that the trigonometric ratio to be used is cosine;

Cos 62 = adjacent/ hypothenuse

Cos 62° = AB/12

AB = 12 Cos 62°

AB = 12 × 0.4695

AB = 5.63

Read more on trigonometric ratios;

https://brainly.com/question/10417664

#SPJ1

The temperature was 8°F. It dropped so that the temperature was 0°F.

Answers

Answer:

It dropped 8 degrees so the answer must be -8

Step-by-step explanation:

Use the diagram shown. Solve for x. Find the angle measures to check your work.
mZAOB = (9x - 5)º
mZBOC = (2x +11°
mZCOD = (6x + 10°
X=

Answers

Answer:

x = 5

Step-by-step explanation:

From the picture attached,

It's given that ∠AOB ≅ ∠COD

therefore, m∠AOB = m∠COD

Now from the given measures of the equal angles,

9x - 5 = 6x + 10

9x - 6x - 5 = 10

3x - 5 = 10

3x = 10 + 5

3x = 15

x = [tex]\frac{15}{3}[/tex]

x = 5

Therefore, measure of the angles given in the picture will be,

m∠AOB = (9x - 5)° = 40°

m∠BOC = (2x + 11)° = 21°

m∠COD = (6x + 10)° = 40°

Answer:guy who answered first is wrong the answer is x = 9

Step-by-step explanation:

daniel spent half of his paycheck on video games. to earn more money, he did chores at home and received $20. how much was his paycheck if he ended up with $56

Answers

Answer: His paycheck was $72.

Step-by-step explanation:

Let x = paycheck amount.

Given,  Amount spent on video games = [tex]\dfrac x2[/tex]

Amount he has left of it = [tex]x-\dfrac x 2=\dfrac x 2[/tex]

Amount received = $20

Total amount amount he has left = [tex]\dfrac x 2 +20[/tex]

According to the question,

[tex]\dfrac x 2 +20 = 56\\\\\Rightarrow\ \dfrac x 2= 36\\\\\Rightarrow\ x= 2\times 36=72[/tex]

∴ His paycheck was $72.

Which value of y makes the equation 16 -y = 11 true?

Answers

Answer:

16-5=11

Step-by-step explanation:

A sample of an unknown liquid has a volume of 24.0 mL and a mass of 6 g. What is its density?

Answers

Answer:

Hey there!

Density = Mass/Volume

Mass= 6g

Volume=24 mL, which is 24 cm^3

Density= 6g/24 cm^3

Density=0.25 g/cm^3

Let me know if this helps :)

Answer:

0.25g/ml

Step-by-step explanation:

Mass=6g

Volume=24ml

Density=Mass/Volume

=6/24=1/4=0.25g/ml

Is 1.875 and rational number

Answers

Answer: 1.875 is a rational number because it can be represented as a ratio or a fraction.

Write the three next natural numbers after 10999

Answers

Answer: 11000, 11001, 11002

Explanation

Which line has the greatest rate of change?
A. The line passing through (0, 2) and (4, 10)
B. The line passing through (0,5) and (2,8)
C. The line passing through (0,0) and (3,-4)
D. The line passing through (0,6) and (12,9)​

Answers

Answer:

I thought it was the last one but I mean if it was wrong sorry

Greetings from Brasil....

The rate of change between 2 points is obtained through the expression:

m = ΔY/ΔXm = (Y₂ - Y₁)/(X₂ - X₁)

a) (0, 2) and (4, 10) so, X₁ = 0; X₂ = 4; Y₁ = 2 and Y₂ = 10

m = ΔY/ΔX

m = (Y₂ - Y₁)/(X₂ - X₁)

m = (10 - 2)/(4 - 0)

m = 8/4 = 2

b) (0,5) and (2,8) so, X₁ = 0; X₂ = 2; Y₁ = 5 and Y₂ = 8

m = ΔY/ΔX

m = (Y₂ - Y₁)/(X₂ - X₁)

m = (8 - 5)/(2 - 0)

m = 3/2

c) (0,0) and (3,-4) so, X₁ = 0; X₂ = 3; Y₁ = 0 and Y₂ = - 4

m = ΔY/ΔX

m = (Y₂ - Y₁)/(X₂ - X₁)

m = (- 4 - 0)/(3 - 0)

m = -4/3

d) (0,6) and (12,9)​ so, X₁ = 0; X₂ = 12; Y₁ = 6 and Y₂ = 9

m = ΔY/ΔX

m = (Y₂ - Y₁)/(X₂ - X₁)

m = (9 - 6)/(12 - 0)

m = 3/12 ⇔ m = 1/4

Among all the values above, the largest is 2, so points

(0; 2) and (4; 10)

14. A manufacturer of lighting fixtures has daily production costs of C = 120 − 5x + 0.25x 2 , where C is the total cost (in dollars) and x is the number of units produced. How many fixtures should be produced each day to yield a minimum cost? What is that minimum cost?

Answers

Answer:

Value of x = 10

Minimum cost (C) = 45

Step-by-step explanation:

Given:

Equation:

120 - 5x + 0.25x²

Find:

Value of x

Minimum cost

Computation:

0.25x² - 5x + 120

x = -[b/2a]

x = -[(-5)/2(0.25)]

x = 10

Value of x = 10

Minimum cost (C) = 120 - 5x + 0.25x²

Minimum cost (C) = 120 - 5(10) + 0.25(10)²

Minimum cost (C) = 45

Write the inverse of h(x) = e 2x
h -1(x) =

log e2 x
2log ex
½log ex

Answers

Answer:

C

Step-by-step explanation:

We are given the function.

[tex]h(x)=e^{2x}[/tex]

And we want to find its inverse.

Let's switch h(x) and x and change h(x) to h⁻¹(x). Hence solve:

[tex]\displaystyle \begin{aligned} x & = e^{2h^{-1}(x)} \\ \\ \ln x & = \ln e^{2h^{-1}(x)} \\ \\ \ln x & = 2h^{-1}(x) \\ \\ h^{-1}(x) & = \frac{1}{2} \ln x\end{aligned}[/tex]

In conclusion, our answer is C.

Note:

[tex]\ln(x)=\log_ex[/tex]

3|4w-1|-5=10
Please help meee!

Answers

Answer:

[tex]w=\frac{3}{2} ,-1[/tex]

Step-by-step explanation:

[tex]3|4w-1|-5=10\\\\3|4w-1|=10+5\\\\3|4w-1|=15\\\\|4w-1|=5\\\\[/tex]

here we have two cases

the number that give an absolute value of 5 are 5 and -5

so we have

[tex]4w-1=5\\\\4w=5+1\\\\4w=6\\\\w=\frac{3}{2}[/tex]

and the other case

[tex]4w-1=-5\\\\4w=-5+1\\\\4w=-4\\\\w=-1[/tex]

find the sum of x2 + 3x and -2x2 + 9x +5.​

Answers

Answer:

This is the answer

Step-by-step explanation:

Solving    3x2-9x-5 = 0 by the Quadratic Formula .

According to the Quadratic Formula,  x  , the solution for   Ax2+Bx+C  = 0  , where  A, B  and  C  are numbers, often called coefficients, is given by :

                                     

           - B  ±  √ B2-4AC

 x =   ————————

                     2A

 In our case,  A   =     3

                     B   =    -9

                     C   =   -5

Accordingly,  B2  -  4AC   =

                    81 - (-60) =

                    141

Applying the quadratic formula :

              9 ± √ 141

  x  =    —————

                   6

 √ 141   , rounded to 4 decimal digits, is  11.8743

So now we are looking at:

          x  =  ( 9 ±  11.874 ) / 6

Two real solutions:

x =(9+√141)/6=3/2+1/6√ 141 = 3.479

or:

x =(9-√141)/6=3/2-1/6√ 141 = -0.479

Two solutions were found :

x =(9-√141)/6=3/2-1/6√ 141 = -0.479

x =(9+√141)/6=3/2+1/6√ 141 = 3.479

I need help graphing this

Answers

Answer: Draw a line through (0,1) and (3,-1)See diagram below

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

Explanation:

The given equation y = (-2/3)x+1 is in the form y = mx+b

m = -2/3 is our slope

b = 1 is the y intercept

The y intercept is where the line crosses the vertical y axis. Because b = 1, this location is (0,1). So that's one point we can use to graph this equation.

Another point can be found using the slope

Recall that slope = rise/run

Since slope = -2/3, this means rise/run = -2/3 leading to rise = -2 and run = 3. The "rise = -2" portion tells us to go down 2 and then "run = 3" portion means we go to the right 3 units.

The "down 2, right 3" motion has us go from (0,1) to (3,-1). So (3,-1) is another point we can use. We only need two points to graph a straight line.

The diagram below provides a visual summary. It shows plotting point A as the y intercept, and then you move to point B using the "down 2, right 3" movement rule.

15.0 is classified as?Select all that apply Natural Number Whole Number Integer Rational Number

Answers

Answer:

integers

Step-by-step explanation:

because integers are always in decimal form

Solve the system of equations below.

Answers

Answer:

B

Step-by-step explanation:

So we have the system of equations:

[tex]x-2y=3\\2x-3y=9[/tex]

To solve, we can use the substitution method. First, add 2y to both sides in the first equation:

[tex]x=3+2y[/tex]

Now, substitute this into the secon equation:

[tex]2(3+2y)-3y=9[/tex]

Distribute the 2:

[tex]6+4y-3y=9[/tex]

Combine like terms:

[tex]6+y=9[/tex]

Subtract 6 from both sides:

[tex]y=3[/tex]

So, the value of y is 3.

Substitute this back into the original equation to find x. Thus:

[tex]x=3+2(3)[/tex]

Multiply:

[tex]x=3+6[/tex]

Add:

[tex]x=9[/tex]

So, our answer is (9,3)

And we're done!

Hey guys since nobody ever helps me and my mom doesn’t I need help on this assiment thanks :)

Answers

*assignment :)))))))

Which of the following is an equation of the line through (-4, 12) parallel to the line y= - 4x - 4?

Answers

Step-by-step explanation:

Showing results for similar searches

No results for Which of the following is an equation of the line through (-4, 12) parallel to the line y= - 4x - 4?

At the start of the day there was £129.75 in the till. One hour later there is £145.50. How much money did the shop make in an hour?

Answers

Answer:

£15.75

Step-by-step explanation:

£145.50 - £129.75

Answer:

The shop keeper made 15.75$ in an hour.

Step-by-step explanation:

Minus 129.75-145.50

A triangle has sides 6cm, and 7cm, use Pythagorean Theorem to figure out its hypotenuse.

Answers

Answer:

c= 9.2

Step-by-step explanation:

a^2 +b^2=c^2

6^2 + 7^2 = c^2

36+49 =85

= 9.2

Than take 85 and [tex]\sqrt{85)[/tex]you have to make sure you square the number so it will be accurate.

c=9.2

i hope this helped

B is the correct answer

1-9.
Simplify each expression.

a. 42 + (-17)

b. 8-(-9)

c. 8(-9)

d. -42=(-7)

e.-2(-3)(-4)

f. -18-7

g. (-5)2

h. -52

i. 49​

Answers

Uhh I think it's B or c

Answer:

hey

Step-by-step explanation:

i cant text u add me ok it deleted my answer

What is the domain of the function on the graph?
all real numbers
all real numbers greater than or equal to 0
all real numbers greater than or equal to -2
all real numbers greater than or equal to -3

Answers

Answer:

Option (4)

Step-by-step explanation:

Domain:

Domain of function is defined by the x-values (Input values) on the graph.

Range:

Range of a function is defined by the y-values (output values) on the graph.

From the graph attached,

x-values are starting from (-3) to infinity.

Therefore, domain of the function will be all real numbers greater than equal to (-3).

Option (4) will be the answer.

Other Questions
what are the coordinates of B if the midpoint of line segment AB is (2, -5) and the coordinates of point A is (4, 4)? Compute the exact value of the function for the given x-value. f(x) = 6x for x = 3 PLZ HELP ASPPP I WILL MARK YOU AS BRAINLIST If PQ=29 and QR=51 find PR. andare terms used to describe thebody position when it is not in anatomical position.?? Parea.1. dar2. tomar3. prestar4. leer5. escribir6. vivir7. salir8. conocer9. asistira. atencinb. en la calle Bolvarc. una fiestad. una composicine. notas (apuntes) en clasef. a muchos amigosg. una novelah. por la maanai. a clase Using the drop-down menus, choose the best specific word for "difficult" to complete the sentences. Use each word once.The race through the desert was; it was too long and hot, and my shoes were too tight.I had a great time with therace that included an obstacle course section.Completing the race wasbecause my shoelaces kept breaking, the road was slippery in places, and the sun was in my eyes.The uphill section of the race was, and I felt that my legs would fall off and I wouldn't be able to keep going. However, I felt better on the way down. What three (3) items makes up the majority of the garbage that we throw into our landfills? * The objectives of cybersecurity are to accomplish each of the following except:_______ a. Make data and documents available and accessible 24/7 while simultaneously restricting, access. b. Promote secure and legal sharing of information among authorized persons and partners. c. Ensure compliance with supply chain business partners. d. Detect, diagnose, and respond to incidents and attacks in real time. (look at the images) can i get help on these? The mass spectrum of a sample of a pure element is shown above. Based on the data, the peak at 26amu represents an isotope of which of the following elements? A) Al with 13 neutrons B) Mg with 14 neutrons C) Fe with 26 neutrons D) Ti with 26 neutrons PLEASE HELP!!! TRIG, Theres a picture!! The concentration of Salt Solution is teamsof mass by mass it is 20% and themass of the Solution IS 550Detrmine the mass of Solute Presentin th Solution? if a part of small intestines is damaged how would that impact the digestion of food There were 32 people on the bus this morning thats a Inference correct ? The first five terms in a pattern are shown below. 3, -3, -9, -15, -21, ...If the pattern continues, which expression can be used to find the nth term? Jenny undergoes partial removal of a cataract on one eye. What code would be used to report this procedure? If cataracts on both eyes were partially removed, should a modifier be used, or should the procedure be reported with two codes? Explain your answer in detail. If the sales tax of a state is 7.55% what is the price of a $125 pair of shoes? Which information makes this article reliable? Fluoride has been added to drinking water since the 1960s. Some people doubt the necessity of fluoridation. More than 50 studies were conducted. Fluoride has been found to prevent cavities in teeth. During the warm days of summer in the Arctic, mosquitoes breed exponentially. When winter comes, the population falls off severely due to a limiting factor. What is the limiting factor in this situation? -no vegetation -more sunlight -excess of food -colder temperatures thanks in advance!! what does anatomy mean