some number minus -15 is equal to the product of the number and 9

Answers

Answer 1

Answer:

x = 15/8

Step-by-step explanation:

Let x = unknown number

Given:

some number minus -15 is equal to the product of the number and 9

⇒ x - -15 = x · 9

⇒ x + 15 = 9x

⇒ 15 = 9x - x

⇒ 15 = 8x

⇒ x = 15/8

Answer 2

Answer:

15/8

Step-by-step explanation:

Let's assume that the number is 'n'. Provided that number 'n' minus -15 is equal to the product of the number 'n' and 9. Simply jot down the above statement in mathematical form:

[tex] \implies\:\sf{\red{n \: - \: ( - 15) \: = \: n \: \times \: 9}}[/tex]

Now, simply solve the above equation.

[tex]\implies\:\sf{n \: + \: 15 \: = \: 9n}[/tex]

Take the like terms on one sides.

[tex]\implies\:\sf{9n \: - \: n \: = \: 15}[/tex]

Do the rest calculations.

[tex]\implies\:\sf{8n \: = \: 15}[/tex]

[tex]\implies\:\sf{\red{n \: = \: \dfrac{15}{8}}}[/tex]

Hence, the required value of n is 15/8.


Related Questions

In circle O , m C = 101° and m D =109° What is m A

Answers

Answer: m A = 150°

well if what you are talking about is arcs, which is what it seems like, the ans for m A = 150°

Step-by-step explanation:

all of the arcs in a circle add up to 360.
so
360 - 101 - 109 = 150

150 would be your degree

Which of the following is the graph of f(x)= x^2+4x+3/x+2

Answers

When you graph the equation it will have 2 curved lines when there right next to one another.

Answer:

here’s what I got

Step-by-step explanation:

please answer this question​

Answers

Answer:

Given Integral is:

[tex] \\ { \displaystyle{ \int{ \large{ \rm{ \frac{1}{x( {x}^{3} + 1) }dx }}}}} \\ [/tex]

Can be written as:

[tex] \\ { \large{ \longrightarrow{ \displaystyle{ \int { \rm{\frac{3 {x}^{2} }{3 {x}^{2} \times x( {x}^{3} + 1) } dx}}}}}}[/tex]

[tex] \\ { \large{ \longrightarrow \frac{1}{3} \: { \displaystyle{ \int{ \rm { \frac{ {3x}^{2} }{ {x}^{3} ( {x}^{3} + 1)} dx}}}}}}[/tex]

Now to evaluate this integral , we use the method of Substitution.

So, Substitute:

[tex] \: \: \: \: \: \: \: \: \: \: \: \: { \rightarrow \: {\large{\rm{ {x}^{3} = y}}}}[/tex]

[tex] \: \: \: \: \: \: \: \: \: \: \: \: \rightarrow \: { \large{ \rm{3 {x}^{2} dx = dy}}}[/tex]

So, on Substituting the values in above integral, we get:

[tex] \\ { \large{ \longrightarrow{ \frac{1}{3} \: \displaystyle{ \int{\rm{ \frac{1}{y(y + 1)} }}}}}}[/tex]

[tex] \\ { \large{ \longrightarrow{ \frac{1}{3} \: { \displaystyle{ \int{ \rm{ \frac{1 + y - y}{y(y + 1)}dy }}}}}}}[/tex]

[tex] \\ { \large{ \longrightarrow{ \frac{1}{3} \: { \displaystyle{ \int{ {\rm{ \frac{y + 1 - y}{y(y + 1)}dy }}}}}}}}[/tex]

[tex] \\ { \large{ \longrightarrow{ \frac{1}{3} \: { \displaystyle{ \int{ \rm{ \left[ \frac{1}{y} - \frac{1}{y + 1} \right ] }dy}}}}}}[/tex]

[tex]{ \large{ \longrightarrow{ \rm{ \frac{1}{3} \left( log |y| - log |y + 1| \right) + c}}}}[/tex]

[tex]{ \large{ \longrightarrow{ \rm{ \frac{1}{3} log | \frac{y}{y + 1} | + c }}}}[/tex]

[tex]{ \large{ \longrightarrow{ \rm{ \frac{1}{3} log | \frac{ {x}^{3} }{ {x}^{3} + 1 } | + c }}}}[/tex]

Hence,

[tex] \\{ \boxed{ \pink { \large{ \displaystyle{ \int{ \rm{ \frac{dx}{x ({x}^{3 } + 1 )} = \frac{1}{3 } log{ \huge{ |}} \frac{ {x}^{3} }{ {x}^{3} + 1} { \huge{ | }} + c}}}}}}}[/tex]

After applying algebraic substitution, partial fraction decomposition and integration rules the integral of the non-trascendental expression [tex]\frac{1}{x\cdot (x^{3}+1)}[/tex] is equal to the trascendental expression [tex]I = \frac{1}{3}\cdot \ln \left|\frac{x^{3}}{x^{3}+1} \right| + C[/tex].

How to determine the indefinite integral of a given expression

According to the statement we have an integrable rational expression formed by non-trascendental expressions, that is, expressions whose behavior is described solely by algebraic components. This expression can be solved by algebraic substitution after making the following modifications:

[tex]\int {\frac{dx}{x\cdot (x^{3}+1)} } = \int {\frac{3\cdot x^{2}}{3\cdot x^{3}\cdot (x^{3}+1)} } \, dx = \frac{1}{3}\int {\frac{3\cdot x^{2}}{x^{3}\cdot (x^{3}+1)} } \, dx[/tex]

And the following substitutions are used: u = , du = 3 · x² dx

[tex]\frac{1}{3} \int {\frac{du}{u \cdot (u+1)} }[/tex]

This is expression is equivalent to the following by partial fraction decomposition:

[tex]-\frac{1}{3}\int {\frac{du}{u+1} } \, du +\frac{1}{3}\int {\frac{du}{u} }[/tex]

And the integral is now solved:

[tex]I = -\frac{1}{3}\cdot \ln |u+1| + \frac{1}{3}\cdot \ln |u| + C[/tex]

[tex]I = \frac{1}{3}\cdot \ln \left|\frac{u}{u+1} \right| + C[/tex]

[tex]I = \frac{1}{3}\cdot \ln \left|\frac{x^{3}}{x^{3}+1} \right| + C[/tex]

Where C is the integration constant.

After applying algebraic substitution, partial fraction decomposition and integration rules the integral of the non-trascendental expression [tex]\frac{1}{x\cdot (x^{3}+1)}[/tex] is equal to the trascendental expression [tex]I = \frac{1}{3}\cdot \ln \left|\frac{x^{3}}{x^{3}+1} \right| + C[/tex].

To learn more on integrals, we kindly invite to check this: https://brainly.com/question/22008756 #SPJ5

PLEASE HELP AND SHOW WORK
What is the perimeter of this square?

Answers

Answer:

60

Step-by-step explanation:

if i see it properly, one side is 15, so 15 x 4 = 60

Help me please!!!!!!!​

Answers

Answer:

  56 cm²

Step-by-step explanation:

The area of the composite shape is the sum of the areas of the parts. In this case, that is the sum of the areas of the central rectangle and four (4) congruent triangles.

The rectangle has dimensions 11 cm × 4 cm, so its area is ...

  A = LW = (11 cm)(4 cm) = 44 cm²

Each triangle has a base of 2 cm, and a height of 2+1 = 3 cm. The area of each triangle is ...

  A = 1/2bh = 1/2(2 cm)(3 cm) = 3 cm³

The total area of the rectangle and 4 triangles is ...

  area of the figure = (44 cm²) +4(3 cm²) = 56 cm²

solo el 20% de los empleados de la población civil que está en una base militar restringida porta su identificación personal. Si llegan 10 empleados, cuál es la probabilidad de que el guardia de seguridad encuentre

Answers

Usando la distribución binomial, hay una probabilidad de 0.8926 = 89.26% de que el guardia de seguridad encuentre al menos uno en la base militar restringida.

¿Qué es la distribución binomial?

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

Los parámetros son:

n es el número de ensayos.p es la probabilidad de éxito en un ensayox es el número de éxitos

En este problema, hay que:

20% de los empleados de la población civil que está en una base militar restringida porta su identificación personal, o sea p = 0.2.Llegan 10 empleados, o sea, n = 10.

La probabilidad de que el guardia de seguridad encuentre al menos uno en la base militar restringida es dada por:

[tex]P(X \geq 1) = 1 - P(X = 0)[/tex]

En que:

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 0) = C_{10,0}.(0.2)^{0}.(0.8)^{10} = 0.1074[/tex]

Por eso:

[tex]P(X \geq 1) = 1 - P(X = 0) = 1 - 0.1074 = 0.8926[/tex]

Hay una probabilidad de 0.8926 = 89.26% de que el guardia de seguridad encuentre al menos uno en la base militar restringida.

Puede-se aprender más a cerca de la distribución binomial en https://brainly.com/question/25132113

Which number is equivalent to
[tex] - \frac{24}{6} [/tex]
A-18
B 18
с 4
D -4​

Answers

The answer is D. -4 hope this helps

Answer:

D) -4

Step-by-step explanation:

Step 1: Divide 24 by 6.

[tex]\frac{24}{6}[/tex] [tex]4[/tex]

Step 2: Put in the negative sign.

[tex]4[/tex] [tex]-4[/tex]

Thus, the answer is D) -4.

Which purchase may people be required to save a small amount of money invested regularly that grows over time?

A) college
B) groceries
C) concert tickets
D) bus passes

Answers

A ?Or b I’m not really sure

Answer:

college

Step-by-step explanation:

10x100 in exponential form

Answers

Answer:

10³

Step-by-step explanation:

10 x 100 = 10¹ x 10² = 10³

Answer: 10³

Step-by-step explanation: 10³

in 1960 the population of Indonesia was 88 million. in 2010 the population of Indonesia was 242 million. *calculate the percentage increase from 1960 to 2010? *estimate the population in 2060 if the rate of increase doesn't change ​

Answers

Answer:

Step-by-step explanation:

1960 = 88,000,000

2010 = 242,000,000

formula: (new-old)/old* 100

(242,000,000 - 88,000,000)/88,000,000 * 100

154,000,000/88,000,000*100

1.75*100

=1.75%

I'M SORRY NOT SURE OF THE SECOND PART

123 + 12 + 1 + 1 + 1 =

Answers

Step-by-step explanation:

123 +

 12

______

   5              (3+2)

 3                (2+1)

1                    (1)

so

123 + 12 = 135

1 + 1 + 1 = 3

3 + 135 = ??

comment answer

please mark brainest

27 is what percent of 81?

Answers

Answer:

33.3333333%

Step-by-step explanation:

Let's set up the equation:

x             27

---     =    ---

100          81

100 x 27 = 2700

2700 ÷ 81 = 33.3333333

So x equals 33.3333333 of a hundred, or in other words, 33.3333333%

Therefore 27 is 33.3333333% of 81.

-kiniwih426

select the correct word form for 1,348​

Answers

one thousand three hundred and forty eight

Answer:

One thousand three hundred forty eight

Step-by-step explanation:

Find the value of x. Enter your answer in the box.

Granola Bars 12 42
Boxes 2 x

Answers

Answer:

x=7

Step-by-step explanation:

to get 2 they did 12/2=6

you then do 42/6= 7

x=7

5 multiply by 3 over 5 pls i need help ;/

Answers

Answer:

3

Step-by-step explanation:

I used a calculator

Hi! I hope you're enjoying your day!

First of all, 5 times 3 (multiplied by 3) is equal to 15.

Then, 15 over 5 (15 divided by 5) is equal to 3.

Here's an easier way to think about it:

[tex]\bold{\displaystyle\frac{5*3}{5}}[/tex]

The 5's cancel, so we're left with 3.

Hence, the answer's

[tex]\boxed{\boxed{\bold{3}}}[/tex]

Hope everything is clear.

If you have any questions, please ask.

#LearningIsFun

[tex]\rule{250}{3}[/tex]

A line passes through the point (1,2) and has a slope of −8.

Write an equation in point-slope form for this line.

Answers

Answer:

y - 2= -8(x - 1)

(I believe so)

Step-by-step explanation:

Since the formula of a point-slope form is y-y1=m(x-x1), you should just substitue the values into the formula.

(If needed simplified version : y-2=-8x+8)

(07.01)
Which of the following values for x and y make the equation 4x + 2y + 3 = 19 true?
x=5, y = 3
x = 4, y = 5
x = 3, y = 2
x = 2, y = 5

Answers

Solution:

Option A

4x + 2y + 3 = 19=> 4(5) + 2(3) + 3 = 19=> 20 + 6 + 3 = 19=> 29 = 19 (False)

Option B

4x + 2y + 3 = 19=> 4(4) + 2(5) + 3 = 19=> 16 + 10 + 3 = 19=> 29 = 19 (False)

Option C

4x + 2y + 3 = 19=> 4(3) + 2(2) + 3 = 19=> 12 + 4 + 3 = 19=> 19 = 19 (True)

Option D

4x + 2y + 3 = 19=> 4(2) + 2(5) + 3 = 19=> 8 + 10 + 3 = 19=> 21 = 19 (False)

Option C is correct.

Answer:

5

Step-by-step explanation:

Part A: 4 x 6 = 24 - 5 = 19 = 19, and v= is equal to or less than. Because 19 is the same as 19, saying it is larger than is false.

Part B (of two):

The answer is incorrect: 4 x 4 = 16 + 3 = 19 = 23.

20 + 3 = 23 = 23 = 4 x 5 = 20 x 5 = 20 x 5 = 20 x 5 = 20 x True, but we should also consider the other possibilities.

Incorrect: 4 x 6 = 24 + 3 = 27 = 23

Incorrect: 4 x 7 = 28 + 3 = 31 = 23

Incorrect: 4 x 8 = 32 + 3 = 35 = 23

As a result, 5 is the correct response!

The graph of y=f(x) is grapes below. What is the end behavior of f (x)?

Answers

Answer:

there is no graph and y=y makes no sense

Step-by-step explanation:

What can be used to define any
nonvertical line in the Cartesian
coordinate system?

Answers

An equation can be used to define any non-vertical line in the Cartesian Coordinate system. The correct option is C.

What is a Non-vertical Line ?

A nonvertical line is a line that has a slope and is defined by its steepness.

It can be represented by a straight line equation y = mx+c, here m is the slope and c is the y-intercept.

The slope can be determined by using two points on the line (x₁,y₁) and (x₂,y₂)

m = (y₂-y₁)/(x₂-x₁)

From the options given, An equation can be used to define any non-vertical line in the Cartesian Coordinate system.

The correct option is C.

The complete question is attached with the answer.

To know more about Nonvertical Line

https://brainly.com/question/14517469

#SPJ2

The area of a parallelogram is 91.2cm2, base is l2cm. Find its height.​

Answers

Answer:

7.6 cm

Step-by-step explanation:

The formula to find the area of the parallelogram is :

Area = Base × Height

They have already given,

Area = 91.2 cm²

Base = 12 cm

Height =?

To find the height, let the height be h.

Let us solve it now.

Area = Base × Height

91.2 cm² = 12 cm × h

Divide both sides by 12.

7.6 cm = h

Therefore, the height is 7.6 cm.

help what answer what is the answer helppppppppppp

Answers

Answer:

1st option

Step-by-step explanation:

Complementary angles sum to 90°

∠ BFC and ∠ AFB form a right angle and sum to 90°

These angles are therefore complementary

The Supremacy Clause makes what the
"Supreme Law of the Land?"
A. The Declaration of Independence
B. The United States Constitution
C. The State Constitutions

Answers

Answer:

B. The United States Constitution

Im giving brainiest if its correct!

Answers

Answer:
Multiplication -> Division
Squaring -> Square rooting

Cubing -> Taking the cube root

Addition -> Subtraction

Alternative:

* -> /

^2 -> √

+ -> -

^3 -> 3√

Basically, an inverse is a mathematical manipulation where one operation undoes the action of the other.

A plumber charges $50 to visit a house plus $40 for every hour of work. Define a variable to represent the unknown quantity. Then write an expression to represent the total cost of hiring a plumber.

Answers

Answer:

50 + 40x

Step-by-step explanation:

pls do in 1 hour i give brainiest

Answers

Answer:

1. 32x3=96

2. 384

3. 262 (I think)

4. now let's do cross multiplication here one day =16 7days =n, n=16*7=112

5. 14 cups

6. 7 pints

7. 3.5 quarts

8. 6 days. There are 4 quarts in 1 gallon so there are 16 quarts in all. Since they drinks 3 quarts everyday, we divide 16 by 3. The answer is 5.3 but I rounded it up because the question asks how many days will it take for the family to finish all the 4 gallons.

Step-by-step explanation:

Find the slope of the line passing through each of the following pairs of points (5,0), (-3,0)

Answers

Refer to my photo for my work and answer.

Which expression means five times the sum of b and two?
A.

B.

C.

D.

Answers

Answer:

A

5(b+2)

Step-by-step explanation:

Solution:

Note that:

Given sentence: Five times the sum of b and two

Let's reread the sentence carefully.

Five times the sum of b and two.

       ↥                            ↥          ↥

       5                           (b   +    2)

Putting them together gives us 5(b + 2).

Please help me with this!!! ​

Answers

Answer:

See explanation below

Step-by-step explanation:

Let's use Q10 as an example and you will work on Q11-12 as they are the same.

I believe the middle column (5x-4) wants you to substitute the given x, so:

Q10.1: 5(-2)-4

Q10.2: 5(4)-4

Q10.3: 5(0)-4

Q10.4: 5(1)-4

The right most column (f(x)) should be asking you the answers from your middle column, so:

Q10.1: -14

Q10.2: 16

Q10.3: -4

Q10.4: 1

As for the domain and range, let's define these two names in case you haven't learnt them:

Domain: What reasonable x values can be inputted into the function.

Range: What reasonable results will be shown after calculating.

In these case, you can input any real numbers into x as you like into the function, the results will always be other real numbers.

Hence, for Q10-12, D and R should be "All real numbers"

Just some extra info, Let the function f(x) be [tex]\frac{1}{x+1}[/tex]. Since the denominator cannot be 0 in a fraction, we say that the domain of x is "All real numbers except -1" as [tex]-1+1 = 0[/tex] and [tex]\frac{1}{0}[/tex] is undefined.

Please help. Find the solution to the system of linear equations. Show work.

Answers

Answer:

(1, -3)

Step-by-step explanation:

To find the solution of the system of linear equations, first you need to set them equal to each other and solve.

y = x-4

y = -2x-1

x-4 = -2x-1

x + 2x = -1 + 4

3x = 3

x = 1

To find the corresponding y-value, plug the calculated x into one of the equations (it doesn't matter which one you choose because they will give the same result).

y = x-4

y = 1 - 4

y = -3

If the graph hadn't been provided, you could check this problem by plotting both equations and determining their intersection. Since the graph was provided you can just compare your results to the shown intersection.

Answer: (1,-3)

Step-by-step explanation: The solution of a system of linear equation is where the two lines intersect, in this case, (1,-3). (that's why the dot is there)

the value of y is one less than the quantity six times the value of x. What is that as a equation?

Answers

Answer:

y = 6x - 1

Step-by-step explanation:

Hope it helps.

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