3. Birr 6,500 was divided equally among a certain number of persons. Had there been 15 more persons, each would have got Birr 30 less. Find the original number of persons.​

Answers

Answer 1

If the population grows by 15 people. The original number of people was 50, hence the new share of each person was Rs. (which is refused).

What is meant by Mathematical equation?

The definition of an equation in algebra is a mathematical statement that proves two mathematical expressions are equal. Consider the equation 3x + 5 = 14, where 3x + 5 and 14 are two expressions that are separated by the symbol "equal."

Let no. of persons = x

Each person get

= 6500/x

If there 15 persons were added more

= 6500/(x + 15)

(6500/x) - 6500/(x + 15) = 30

[tex]\Rightarrow 6500\left[\frac{(\mathrm{x}+15)-(\mathrm{x})}{\mathrm{x}(\mathrm{x}+15)}\right]=30[/tex]

[tex]\Rightarrow 6500\left[\frac{x+15-x}{x^2+15 x}\right]=30[/tex]

[tex]& \Rightarrow 1625\left[\frac{15}{x^2+15 x}\right]=3 \\[/tex]

Then,

[tex]& \Rightarrow \frac{24375}{x^2+15 x}=3 \\[/tex]

Simplifying the above equation,

[tex]& \Rightarrow 3 x^2+45 x=24375 \\[/tex]

[tex]& \Rightarrow 3 x^2+45 x-24375=0 \\[/tex]

[tex]& \Rightarrow x^2+15 n-3250=0 \\[/tex]

[tex]& \Rightarrow x^2+(65 n-50 n)-3250=0 \\[/tex]

Then we get,

[tex]& \Rightarrow x^2+65 n-50 n-3250=0 \\[/tex]

[tex]& \Rightarrow x+65)-50(x+65)=0[/tex]

[tex]\Rightarrow(\mathrm{x}-50)(\mathrm{x}+64)=0[/tex]

x = 50, x = -65

Since the number of people cannot be zero,

the number of people is 50.

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Related Questions

There are red, yellow, blue and green counters in a bag. The probability of picking red is 0.25. The probability of picking yellow is 0.15. The probability of picking blue is 0.2. Work out the probability of picking green? *

Answers

Answer:

The probability of picking a green is 0.4

Step-by-step explanation:

Mathematically, when we talk of the highest possibility an event can have, we have the answer as 1

Hence, when we add up all the probabilities, it is expected that we arrive at a value equal to 1

Thus, the probability of selecting each individual colors add up to 1

since we have the probability of three colors, the probability of the fourth will be the sum of the others subtracted from 1

we have the probability of picking a green as;

1 - 0.25 - 0.15 - 0.2 = 0.4

3(x-3) = 20 what is x

Answers

Answer:

x ≈ 9.7

how mny decimal places do u need?

Step-by-step explanation:

3( x-3 )= 20

>3x - 9 = 20

>3x = 29

> x= 9.66666667

08 Match the following
Column
Column B
( Ul Janes mill a Goveror-geroveral
ul official documente bl Biotanicalganda
Ili warn Hasting
Ivcustard Apple di preserved
Indial
(CI A History ob British​

Answers

English. ???????????

Resolve into factor

p⁴+7p²q²+16q⁴​

Answers

Answer:

15 q4. + 7p2q2 is the correct answer

Why is it br2 and not BR?

Answers

Bromine is a diatomic molecule since it is typically found in groups of two.

What is the symbol to represent a chemical compound?

An element's one- or two-letter identification is known as a chemical symbol. O for oxygen, Zn for zinc, and Fe for iron are a few instances of chemical symbols. Symbols always start with a capital letter. Lowercase letters are used for the second letter in symbols with two letters.

A subscript appears after the atom to indicate how many of each kind there are. There is no number written if there is just one atom. The number is given as a subscript after the atom if there are multiples of a particular kind of atom.

Br represents the bromine. Bromine is a diatomic molecule and always needs to be bounded to something. Thus it is bounding to itself.

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Mei needs to cut a 12-inch loaf of bread into slices that are inch thick.
a. How many 2-inch thick slices can Mei cut from the 12-inch loaf of bread?
b. How many inches of bread would be left over?

Answers

a. The number of 2-inch thick slices that Mei can cut from the 12-inch loaf of bread is 6.

b. The inches of bread that would be left over is zero.

How to illustrate the expression?

The information given an be solved by Illustratingnut with an expression. This is simply used to show the relationship between the variables that are provided or the data given regarding an information.

Since Mei needs to cut a 12-inch loaf of bread into slices that are inch thick, the number of 2-inch thick slices that Mei can cut from the 12-inch loaf of bread is:

= 12 / 2

= 6

There'll be no left over

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A rectangular pool has a length of 24 feet, a width of 12 feet, and a depth of 8 feet. What is the volume of the pool?

Answers

Answer:

multiply opposite side and the answer is ready now because check your soulation

Find the volume of this cylinder. Round your answer to the nearest tenth if necessary. Use 3.14 for pi

Answers

Answer:37.68

Step-by-step explanation:

given:

diameter of cylinder =4in.

radius of cylinder=2in.

height of cylinder =3in.

Volume of cylinder=πr^2h

. = 3.14×2×2×3

. = 37.68 in Cube

Answer:

113.1

Step-by-step explanation:

If π= 3.14 And The Equation For This Type Of Problem Is V=πr2h then all you do is do 3.14 times 9 times 4

Where Your Multiplying 3 To Square Of 2 To Get 9, So Take that 3.14 Multiply It By 9 And Then 14, Thus the answer is 113.1

Hope This Helps

What is the diameter of B?
With explanation. No links.

Answers

B = (5/9)A
C = (1/2)(A+B)
C = (1/2)(A+(5/9)A)
C=(5/18)A

A + B + C = 91
A + (5/9)A + (5/18)A = 91

(33/18)A = 91

A = 49 + 7/11

B = (5/9)A

B = (5/9)(539/11)

B = 27 2/9 or 27.22


Help me please I don't know it​

Answers

Answer:

65

Step-by-step explanation:

Method 1(Algebra):

m - 14 = 51

Add 14 to both sides of the equation.

m - 14 + 14 = 51 + 14

Combine like terms.

m = 65

Method 2:

m - 14 = 51

Move negative fourteen(- 14) to the other side of the equation. Because we moved it, it is now positive fourteen( + 14)

m = 51 + 14

Combine like terms.

m = 65


If you can buy 5 bags of bananas for $28.15, find the unit price of a bag
of bananas.

Answers

Answer:

$5.63

Step-by-step explanation:

Each bag of bananas is $5.63.

If you divide $28.15 by 5 you get $5.63.

Solve using the quadratic formula. Show all work. Write each solution in simplest form. No decimals.

Answers

Answer:

There's no real solution to your question but thats what I got

[tex] - 2 + \sqrt{3} \: \: \: and \: - 2 - \sqrt{3} [/tex]

PLEASE HELP !!
Find the value of x
picture attached

Answers

Answer:

x = 11

Step-by-step explanation:

The two angles are consecutive interior angles so they add up to 180

13x -26 + 5x + 8 = 180

13x + 5x -26 + 8 = 180

18x - 18 = 180
18x = 180 + 18

18x = 198

x = 11

Which best explains why |–4| = 4?

Answers

Answer:

Absolute Value

Step-by-step explanation:

|-4| is equal to 4 because Absolute Value is the distance from zero to a number on a number line. The vertical bars "||" in Absolute Value convert the number to it’s positive.

Examples:

|-12| = 12  

|5| = 5

The quotient of 25 and 5 increased by 3

Answers

Answer: 8

Step-by-step explanation: Based on the given conditions, formulate 25/5+3 Reduce  the sum or difference: to 8 therefore the answer is 8

Answer:

down below

Step-by-step explanation:

The quotient means the total amount that comes from dividing two things. In this case, the problem is asking for 25 and 5 to be divided. 25 divided by 5 is 5. You can check this by multiplying 5 and 5 to get 25. So, you know it's right. Now, take 5 and add 3 to it. 5 + 3 = 8. So, the answer is 8.

Hope this helps! :)

Is 3 3 an additive inverse?

Answers

3 and -3 are additive inverses because 3 + (-3) = 0.

Therefore, -3 is the additive inverse of 3.

Additive Inverse:

The additive reciprocal/ Inverse of a number is its inverse. When a number is added to the additive reciprocal, both numbers sum to zero. A simple rule is to change positive numbers to negative numbers and vice versa. We know that 3+ (-3) =0. So -3 is the additive reciprocal of 3, and 3 is the additive reciprocal of -3.

If the sum of two real numbers is 0, each real number is said to be the additive reciprocal of the other real number. Therefore, R + (-R) = 0. where R is a real number. R and -R are the additive reciprocals of each other. Example: 3/4 + (-3/4) = 0. where 3/4 is the additive reciprocal of -3/4 and vice versa. This is an example of the additive reciprocal of a fraction.

We have room temperature water in a bucket. Adding 1 liter of hot water raises the temperature of the entire bucket by a certain amount. Then add another liter of cold water. Opposite temperature water in the bucket will cancel out, resulting in a bucket of room temperature water. The same rules apply when taking the additive reciprocal of a number. The additive inverse property applies to both real and complex numbers.

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Please help! Determine the coordinates of the transformation and plot the image for Rx Axis of the triangle ABC

Answers

Answer:

Step-by-step explanation:HI

You got answer already?

Just , look down as in rectangle A" (-6,1)

B"(-1,-3)

C"(-4, 4)

And you have wrong coordinates for C (-4,-4)

the equation of a function is y=4x-1 1/2 find the value of y when x=6
the answer is 45/6 but please anyone tell in full explana
tion I will mark them brainlist like them and rate them​

Answers

Answer:

y = 45/2

Step-by-step explanation:

Given:

y = 4x - 1 1/2

find the value of y when x=6

y = 4x - 1 1/2

Substitute x = 6 into the equation

y = 4(6) - 1 1/2

y = 24 - 1 1/2

** 1 1/2 = 3/2

y = 24 - 3/2

y = (48-3) / 2

y = 45/2

y = 45/2 when x = 6

Which of the following inequalities is true for ALL real values of x?

x3 ≥ x2

3x2 ≥ 2x3

(2x)2 ≥ 3x2

3(x − 2)2 ≥ 3x2 − 2

Answers

(2x)2 > 3x2 is true the first two you can not have two x’s on the same side because where would you put them both when solving them the last one I’m not sure about

3. A mysterious metal medallion has a mass of 3,088 grams. Water is poured into a graduated glass container with a 10-by-10 cm square base with a water level of 53.0 cm. The medallion is dropped into the container and the water level rises to 54.6 cm. Find the volume and the density of the medallion.​

Answers

Answer:

Heres my notes

Step-by-step explanation:

HELP DUE IN 10 MINS!

9. The diagonals of a kite are congruent.



True

False

10. The base angles of an isosceles trapezoid are congruent.



True

False

Answers

Answer:

9. not all of them are, so false

10. true

Step-by-step explanation:

Answer:

True and true

Step-by-step explanation:

I think this is symmetry, but if it’s not I’ll change my answer

if the radius of a circle is 5 what is the circumference

Answers

Answer:

31.42

hope this helps

have a good day :)

Step-by-step explanation:

Answer: 31.4

Step-by-step explanation:

If you simplify(x^3/x/x)^3, what power rules do you need to simplify it? a. Addition Rule and Power of a Power Rule b. Subtraction rule and Power of a Power. c. Division Rule and Power of a Power Rule d. Power of a Product Rule and Power of a Power Rule e. None of these choices

Answers

Answer:

. c. Division Rule and Power of a Power Rule

Step-by-step explanation:

(x^3/x/x)^3

=(x³/x/x)³

First we need to solve the brackets. Anything written in the fraction form a/b/c can be written as a*c/b.

Similarly (x³/x/x)³ can be written as (x*x³/x)³

Solving further the x can be cancelled by x leaving x³ behind.

(x³)³

Now applying the Power of a Power Rule

x³*³= x⁹

First the division rule and then the power rule is applied.

if AB||EF and EF||CD, then find the value of x.​

Answers

Answer:

x = 40°

Step-by-step explanation:

∠ FEC and ∠ ECD are same- side interior angles and sum to 180° , that is

150° + y = 180° ( subtract 150° from both sides )

y = 30°

∠ BCD and ∠ ABCare alternate angles and are congruent , so

x + y = 70° , that is

x + 30° = 70° ( subtract 30° from both sides )

x = 40°

Choose all of the equations that represent a parabola with the focus (3,9) and the vertex (3, 6).
A. 12y = x² - 6x+81
B. 24y=x²-12x + 72
C. 24y=x² - 6x + 225
D. (x-3)2 24 (-9)
E. (x-3)² = 12 (y – 6)
F. (x-9)² = 24 (y - 3)

Answers

 (x-3)² = 12 (y – 6)  is the equation for a parabola with the vertex (3, 6) and focus (3, 9) in it.

what is parabola ?

A parabola is a U-shaped plane curve in which every point is situated at an equal distance from both the focus, a fixed point, and the directrix, a fixed line. The topic of conic sections includes parabola as a key component, and all related parabola topics are discussed. a plane curve produced by a point shifting such that its separation from a fixed point equals its separation from a fixed line: junction of a plane parallel to an element of a right circular cone with the cone. : a bowl-shaped object (such as an antenna or microphone reflector)

given

focus (3,9) and the vertex (3, 6)

general equation of parabola = (x - h)2 = 4a (y - k)

a = |y2 - y1| = | 9 - 6 |

a = 3

so

(x - 3 )[tex]^{2}[/tex] = 4 * 3 ( y - 6 )

= [tex](x-3)^{2} = 12 ( y - 6 )[/tex]

 (x-3)² = 12 (y – 6)  is the equation for a parabola with the vertex (3, 6) and focus (3, 9) in it.

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AREA OF CIRCLES HELP PLS​

Answers

Answer:

432ft^2

Step-by-step explanation:

24/2=12

3 x 12 x 12=432

pi multiply by 12 because the diameter is 24 then we divide it by 2 so 24/2 = 12 , then we use the calculator

Write two expressions for the perimeter of a square explain what information is in one of your expression that is not in the other

Answers

The expression for the perimeter of a square will be p = 4s.

How to calculate the perimeter?

The perimeter of a figure of shape can be gotten the total length of the boundary which the figure or the shape has. it's gotten by adding all the length that the shape has.

It should be noted that a square has four equals sides. The expressions for the perimeter of a square will be:

p = 4 × s.

p = 4s

where s = number of sides.

p = perimeter

For example if the side is 2cm. The perimeter will be calculated by multiplying 4 by the value of the sides. In this case, this will be calculated as:

= Value of sides × 4

= 2 × 4

= 8cm

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1+1=2
2+2=1
1+2=1-2
1-1+2-2
==21 the answer is 21 ok get the :-
6+6​​​​​​​​​​​​​​​​​​​​​​​​​​​​=12=?​​​​​​

Answers

Answer:

6-6

........................

Christopher has set up a lemonade stand outside his house and sells small cups and large cups of lemonade. Each small cup holds 10 ounces of lemonade and each large cup hold 20 ounces of lemonade. Christopher used 800 ounces of lemonade and sold twice as many small cups as large cups. Graphically solve a system of equations in order to determine the number of small cups sold, x , x, and the number of large cups sold, y y.

Answers

Christopher sold 20 cups of large 20-ounce cups of lemonade

outside his house.

What are linear and non-linear functions?

A straight line on the coordinate plane is represented by a linear function. As an illustration, the equation y = 3x – 2 depicts a linear function because it is a straight line in the coordinate plane.

Any function whose graph is not a straight line is said to be nonlinear. Any curve other than a straight line can be a graph of it.

An example of a non-linear function is a quadratic function.

Given, Christopher has set up a lemonade stand outside his house and sells small cups and large cups of lemonade.

Small cups sold is x and the number of large cups sold is y.

Each small cup holds 10 ounces of lemonade and each large cup holds 20 ounces of lemonade and he sold 800 ounces.

Therefore,

10x + 20y = 800...(i)

He also sold twice as many small cups as large cups.

Therefore,

2y = x...(ii)

10(2y) + 20y = 800.

20y + 20y = 800.

40y = 800.

y = 20.

So, He sold 20 cups of large lemonade.

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Number of study sessions Total Enrollment

Morning class 25 16

Night class 20 22

If the total study sessions for the night class were proportional to the morning class, how many would you expect the night class to have? How does this compare to the actual amount of study session the night class has?




If the night class were proportional to the morning class, we would expect them to have

[ Select ]


[ Select ]

than the number of study sessions they have currently

Answers

If the total study sessions for the night class were proportional to the morning class that is 25: 20 then night class have the actual amount 80% students

we can calculate 20/25 *100

and we obtain the actual amount  80%

If the total study sessions for the night class were proportional to the morning class is 25: 20 and 16: 22

What is a proportion simple definition?

the size, number, or amount of one thing or group as compared to the size, number, or amount of another. the proportion of boys to girls in our class is three to one. : a balanced or pleasing arrangement

Initially, the number of lectures is 3 while the number of fieldwork is 12. Furthermore, the class sessions increased to 18 and the number of fieldwork remains the same (i.e. 12). Therefore, the number of lectures will be 18 - 12 = 6. The percentage of the sessions that were  lectures will be:

(6/18)*100% = 33.3%

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