Seven times a number decreased by three-fourths of the same number is 25. What is the number?

Answers

Answer 1

Answer:

103/28

Step-by-step explanation:

Let the number be 'x'

Equation:-

7x - 3/4 = 25

7x = 25 + 3/4

7x = 100/4 + 3/4

7x = 103/4

x = 103/(4 x 7)

x = 103/28

Answer 2

Answer:

if we make this a algebraic equation it will look like this

7x-3/4x=25

6.25x=25

25 divided by 6.25=4

x=4

to check

28-3=25

Hope This Helps!!!


Related Questions

8+(10-7) writen in words​

Answers

Answer: 11

Step-by-step explanation:

8 + (10 - 7)

first you would solve the parenthesis, to support the order of operations.

8 + ( 3)

ten minus seven is three, so we replace the "10-7" in the parenthesis with "3"

next you add the eight and the three together

8 + 3 = 11

the total is eleven :)

Hey there!

Do PEMDAS to solve

Parentheses

Exponents

Multiplication

Division

Addition

Subtraction

8 + (10 - 7)

10 - 7 = 3

8 + 3

= 11

Or

8 + (10 - 7 )

8 + 10 - 7

8 + 10 = 18

18 - 7

= 11

Answer: 11

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

What is the explicit formula for this geometric sequence -4,-8,-16,-32

Answers

Answer:

an = - [2^(n+1)]

Step-by-step explanation:

-4,-8,-16,-32

a1 = -4

r = -8/-4 = 2

the formula :

an = -4. 2^(n-1) = - [2^(n+1)]

A rectangle has its base on the x-axis and its upper two vertices on the parabola y = 49 − x2. What is the largest possible area (in squared units) of the rectangle?

Answers

Explanation:
The parabola is a 'mountain'-type (because the coefficient of
x
2
is negative. Also, it is symmetrical in respect to the
y
-axis, because there is no
x
-term.
We can now simplify the problem to finding a rectangle with vertices at
(
0
,
0
)
,
(
x
,
0
)
,
(
0
,
y
)
and
(
x
,
y
)
and then double the
x
-values.
The area will then be
A
=
x

y

If we substitute the equation of the parabola for
y
:
A
=
x

(
49

x
2
)
=
49
x

x
3

To find the extremes (max of min) we need the derivative and set it to zero:
A
'
=
49

3
x
2
=
0

x
2
=
49
3

x
=

49
3

4.04
...

(remember we will have to double that)
Use this in the original function:
y
=
49

x
2
=
49

49
3
=
98
3

32.67

Answer :
Dimensions will be
8.08
x
32.67

graph{49-x^2 [-65.4, 66.33, -13.54, 52.3]}

Let the base of the rectangle be of length 2x, so its vertices on the parabola are (−x, 49 − x²) and (x, 49 − x²).

The area A of the rectangle is given by A = 2x(49 − x²), which simplifies to A = 98x − 2x³.

What is Rectangle?

A rectangle is a four-sided polygon with opposite sides being congruent and parallel to each other, and all interior angles measuring 90 degrees.

To find the maximum possible area, we need to find the value of x that maximizes A. To do this, we take the derivative of A with respect to x and set it equal to zero:

dA/dx = 98 - 6x² = 0

Solving for x, we get x = ±√(98/6) ≈ ±4.1

Since the rectangle is symmetric about the y-axis, we only need to consider positive values of x. Therefore, the length of the base of the rectangle is 2x ≈ 8.2.

The height of the rectangle is 49 − x² ≈ 47.9.

The maximum area of the rectangle is then A ≈ 392.18 square units.

Learn more about area of rectangle at:

https://brainly.com/question/20693059

#SPJ3

PLEASE HELP W THIS I WILL Give YOU THE BRAINLIEST PLEASE ! - What does it mean to have a skewed distribution? What causes a skew in statistical terms? And how does one deal with skewed data when conducting research? Are there specific types of
research questions and types of data where one would expect the data to be skewed?

Answers

Answer:

Explained below

Step-by-step explanation:

A) A skewed distribution in a dataset is when the median is not equal to the mean in such a manner that the bell curve is tilted to the left or right.

B) If in a data set, if there are outliers which are extremely large or extremely small in comparison to other values in that same dataset, then we can say that such a curve will be pulled towards the outlier and thus the distribution is skewed.

Also, if the curve is inclined to the left, it means there are few extreme values to the left and it is negatively skewed.

Similarly, if the curve is inclined to the right, it means there are few extreme values to the right and is positively skewed.

C) Example of a research question is;

If in a developed country where the poverty level is about 0%, if we collect the data of income of the households, we will discover majority of people with average income and very few people with extreme high levels of income. This condition means the data is positively skewed.

Use the coordinates of the labeled point to find a point-slope equation of the line.
A. y + 4 = 3(x-3)
B. y + 4 = -3(x - 3)
C. y - 4 = -3(x+3)
D. y - 4 = 3(x+3)

Answers

Answer:

B

Step-by-step explanation:

slope is negative

point slope formula is : (y-[tex]y_{1}[/tex]) = m(x-[tex]x_{2}[/tex])

the formula has minus signs that change the coordinates to the opposite value .

Answer is B y + 4 = -3 (x-3)

What is the area of this figure?

Answers

Answer:

90km² only if it is parallelogram

Step-by-step explanation:

base = 9km

height=10km

area of parallelogram = b x h

=9km x 10km

=90km²

Answer:

A = 90km2

Step-by-step explanation:

Area of a rhombus is:

1. A = s x h (if given side and height)

2. A = 1/2 a x b (if given lengths of diagonals)

3. A = s^2 sin A (if given side and length)

Therefore from your problem, height and side is given thus, you'll use number 1

A = s x h

A = 9km x 10km = 90km2

Ang salitang entrepreneur ay hango sa salitang na entrepende na nangangahulugan__________​

Answers

Answer:

— Ang salitang entrepreneur ay hango sa salitang French na entrepende na nangangahulugang?

Mercury and venus are the sun than earth is.

Answers

closer to, shorter, longer.  (T=A^1.5

just took the assigniment.

Answer:

So, their orbital periods are than Earth's orbit. The further a planet is from the sun, the its orbit is.

Step-by-step explanation:

Even though Venus is farther from the sun than mercury, Venus's surface is hotter than Mercury's because Venus has a carbon dioxide atmosphere that traps the sun's heat.

What is the solution set for -3(2x-4)+2<8

Answers

Answer:

-3(2x-4)+2<8

-3(2x-4)<6

-6x+12<6

-6x<-6

x=1

-3(2-4)+2<8

share 560 in a ratio of 3 : 5 among two people, how much does each get​

Answers

Step-by-step explanation:

Let the ratio constant be 'x'

Sum of the ratios=3x+5x=8x

First person gets:-

3/8 x 560 = 210

Second person gets:-

5/8 x 560 = 350

Given m||n, find the value of x.

Answers

X SHOULD be 131 because 180 is an straight line and 180-49=131. Then 49 is the other number on the other side of the x because of some rules.

PLS HELP ITS DUE AT 11:10

Answers

Answer:

Scalene.

Step-by-step explanation:

It's scalene because non of the triangle's sides are congruent.

What is the domain of the relation {(-3,-8) (-2,9) (1,-1) (5,3)}

Answers

Domain = x-components

Therefore,Domain = {-3,-2,1,5}

Answer:

Domain = x-components

Therefore, Domain = {-3,-2,1,5}

Step-by-step explanation:

Use the remainder theorem to find P(2) for P(x) = -x^3 + 4x^2 + 4

Answers

Answer:

12

Step-by-step explanation:

P(2)=-2³+4(2)²+4=-8+16+4=12

Find the value of
[tex]3 \frac{1}{5} \div \frac{8}{20} [/tex]


Answers

Answer:

[tex]{ \bf{3 \frac{1}{5} \div \frac{8}{20} }} \\ = \frac{16}{5} \div \frac{8}{20} \\ { \boxed{ \tt{reciprocal \: of \: \frac{8}{20} = \frac{20}{8} }}} \\ \therefore \: = \frac{16}{5} \times \frac{20}{8} \\ = \frac{320}{40} \\ { \bf{ answer : 8}} \\ \\ {\underline{\tt {\blue{becker \: jnr}}}}

[/tex]

3 1/5 must first converted into 16/5
Then, we can change the division into multiplication by changing 8/20 into it’s reciprocal, 20/8.
This gives us 16/5 * 20/8.
We can then simplify this to 2/1 * 4/1
You then multiply the two fractions to get 8/1 which is equivalent to 8.

Given right triangle ABC with altitude BD drawn to hypotenuse AC. If AD=40 and AC=48, what is the length of AB in simplest radical form?

Answers

Answer:

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

Step-by-step explanation:

AB^2 = AD * AC

we got the answer

How many exterior walls does the building have?

Answers

Answer:

18

Step-by-step explanation:

360÷20=18

twentycharactersignorethis

the building has 16 exterior walls

The dot plots below show the ages of students belonging to two groups of painting classes: Based on visual inspection, which group most likely has a lower mean age of painting students? Explain your answer using two or three sentences. Make sure to use facts to support your answer.

Answers

Answer:

it's group A because they have more reliable sources

Which number line represents the solution set for the inequality? HELP PLEASE

Answers

Answer:

sorry i dont know next time ill surely help when i know.

One number is 8 times a first number. A third number is 100 more than the first number. If the sum of the three numbers is ​1090, find the numbers.

Answers

Answer:

Number one: x

Number two:8x

Number three: x+ 100

They added together equal to 1090:

x + 8x + x+ 100 = 1090

10x= 1090-100

10x=990

x=99

Number one: 99

Number two: 792

Number three: 199

Sum: 1090

Price: 32.80
Sales Tax rate: 8.5%

Answers

Answer:

The new price of this thing you're buying is about $35.58.

Step-by-step explanation:

To find the new price you could find 8.5% of 32.80 then add it to 32.80. That would give you the new price, or you could simply find 108.5% of 32.80. That one has less steps, so Im going to go with that.

What is 108.5% of 32.80?

Let's set up an equation then solve.

108.5% · 32.80 = X

1.085 · 32.80 = 35.588

The new price of this thing you're buying is about $35.58.

Algebra helppp 20 points

Answers

Answer:

D or A im leaning towards d but test your luck or not ur choice

Step-by-step explanation:

i need the
[tex] \sin(0) [/tex]
of the Triangle​

Answers

Answer:

sinθ = 4/5

General Formulas and Concepts:

Trigonometry

[Right Triangles Only] SOHCAHTOA  [Right Triangles Only] sinθ = opposite over hypotenuse

Step-by-step explanation:

Step 1: Define

Identify variables

Angle = θ

Opposite Leg = 4

Hypotenuse = 5

Step 2: Find

Substitute in variables [sine]:                                                                              sinθ = 4/5

Answer:

4/5

Step-by-step explanation:

The sine of the angle theta is the ratio   opposite side / hypotenuse, which

here is

sin theta = 4 / 5

Which of the coordinate points below will fall on a line where the constant of proportionality is 23? Select all that apply.
A) (6,8)
B) (3,2)
C) (6,4)
D) (9,6)
E) (12,8)

Answers

Answer:

(3,2)

(6,4)

(9,6)

(12,8)

Step-by-step explanation:

Constant of proportionality is 2/3

This means that:

[tex]y = \frac{2}{3}x[/tex]

Thus, y should be less than x, which removes option A.

B) (3,2)

x = 3, so:

[tex]y = \frac{2}{3}x = \frac{2}{3}3 = 2[/tex]

So (3,2) is on the line

C) (6,4)

x = 6, so:

[tex]y = \frac{2}{3}x = \frac{2}{3}6 = 4[/tex]

So (6,4) is on the line

D) (9,6)

x = 9, so:

[tex]y = \frac{2}{3}x = \frac{2}{3}9 = 6[/tex]

So (9,6) is on the line

E) (12,8)

x = 12, so:

[tex]y = \frac{2}{3}x = \frac{2}{3}12 = 8[/tex]

So (12,8) is on the line

A sequence is defined by the recursive function f(n+1)=f(n)-2

If f(1)=10 what is f(3)?

Answers

Answer:

f(3) = 6

Step-by-step explanation:

Using the recursive rule and f(1) = 10 , then

f(2) = f(1) - 2 = 10 - 2 = 8

f(3) = f(2) - 2 = 8 - 2 = 6

Given :-

A sequence is defined by f(n + 1) = f(n) -2 .f(1) = 10

To Find :-

The value of f(3) .

Solution :-

As per Question ,

→ f(n + 1) = f(n) - 2

→ f(n + 1 ) - f(n ) = -2

Therefore , the second term of the sequence is ,

→ f(2) - f(1) = -2

→ f(2) - 10 = -2

→ f(2) = 10 -2

f(2) = 8

Similarly,

→ f(3) - f(2) = -2

→ f(3) = 8 -2

f(3) = 6

Hence the value of f(3) is 6 .

PLEASE HELP!!! IM ALMOST DONE WITH THIS SEMESTER

Answers

A

You can calculate it out or you can see that it's the only answer in slope intercept form

Hello! i really need help with this question.

Answers

Answer:

Option C

Step-by-step explanation:

Since,

Ray starts from point O and goes endlessly through point M so, the direction of Ray will be ---> on OM.

Answer:

C

Step-by-step explanation:

Starting from O then moving towards M

Find the mean birth weight of these 29 babies

Answers

Answer:

The mean is 6.14

Step-by-step explanation:

Given

See attachment

Required

The mean

Mean is calculated as:

[tex]\bar x = \frac{\sum fx}{\sum f}[/tex]

So, we have:

[tex]\bar x = \frac{5 * 4 + 10 * 6 + 14 * 7}{29}[/tex]

[tex]\bar x = \frac{178}{29}[/tex]

[tex]\bar x = 6.14[/tex]

If f(x)=2x²-x find f(-3)

Answers

Answer:

21

Step-by-step explanation:

f(x) = 2x^2 - x

f(-3) = 2*(-3)^2 - (-3)

=2*9 +3

=18 +3

=21

Answer: 21

Step-by-step explanation: To find f(-3) or the value of the function when x = -3, we plug in a -3 for the x in our function and we have 2(-3)² - (-3).

Start by simplifying the exponent to get 9.

So we have 2(9) - (-3) or 18 + 3 which is 21.

what is 2+2+3+3+5+6

Answers

Answer:

21

Step-by-step explanation:

21

21

21

Answer:

Simple addition the answer is 21.

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B. technology is not very good.C. incubation period is unpredictable.D. All of these choices are correct. Determina la forma de las cajas y la mayor cantidad de ectructuras que puede construir con todos los listones que ha reccibido con las siguientes caracteticas LIST & NUMBER 5 things you learned about NYC during the 1900s (Industrial Revolution). I need to make a character an "explorer" during the years 1500-1700 with the questions of 1. what country you sail for 2. where are you traveling to3. what year/time frame is it 4. how many people and ships are sailing with you 5. what it is you are hoping to find/discover 6. are you hoping to start a colonization What is this functions input if its output is 11?f(x) = 2x + 5 Benny is the manager of an office-support business that supplies copying, binding, and other services for local companies. He must replace a worn-out copy machine that is used for black-and-white copying. He is considering two machines, and each of these has a monthly lease cost plus a cost for each page that is copied. Machine 1 has a monthly lease cost of $619, and there is a cost of $0.030 per page copied. Machine 2 has a monthly lease cost of $675, and there is a cost of $0.028 per page copied. Customers are charged $.16 per page copied. If Benny expects to make 105,000 copies per month, what would be the monthly cost for each machine In the Northern and Southern Hemispheres, the Coriolis effect changes the direction of wind circulation, affecting the weather. Identify the arrows of circulation that most influence the weather in the United States. The seagulls on the beach - Uprisings by Nat Turner and Gabriel contributed to Southern states' decisions to a. pass harsh slave laws. b.accept the Missouri Compromise. c. enact Jim Crow laws. d. support the passage of higher tariffs