3/7 of the students in a school are girls. If there are 64 boys find how many girls there are

Answers

Answer 1

Answer:

About 28

Step-by-step explanation:

Answer 2

Answer:90

Step-by-step explanation:Hi.

Here is your answer---

Let the number of Students in a school be x.

Thus,Number of Girls = 3/7 of the total Students

= 3/7 of x

= 3x/7

We know,

Number of Boys + Number of Girls = Total Students.

64 + 3x/7 = x

64 = x - 3x/7

64 = (7x - 3x) /7 [Taking L.C.M.]

64 × 7 = 4x

x = 60 × 7

x = 420

Total number of Students in a school is 420.

Thus, Number of Girls = 3/7 × x

= 3/7 × 420

= 90

Thus, the number of Girls in a school is 90.

______________________

Hope it helps.

Have a nice day.


Related Questions

Plzzzzzz helpppppppppppp

No like for real I don’t understand:(

Answers

Answer: Yes, No

Step-by-step explanation:

The sum of two numbers is 22 and the sum of their squares is 250. Find the following information numbers

Answers

Answer:

REEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE100016784994

Step-by-step explanation:

REEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE

x+4 over negative 5 =3​

Answers

Answer:

x = -4 3/5 or -4.6

Step-by-step explanation:

(x+4)/-5 = 3

Divide -5 from both sides

x + 4 = -3/5

Subtract 4 from both sides

x = -4 3/5

please help me with my homework my friends won’t

Answers

Answer:

Part A

1. Celsius

2. 100 C

3. 273.15 Kelvin.

4. 273, formula: °C + 273.15 = K.

5.  -273 celsius

6. Farenheit

Part B:

7. True

8. False, you add not subtract.

9. False, it's 373.1 K

10. True

At the beginning of a baking session, there were 2.26 kilograms of flour in a bag. By the end of the baking session, there were 0.98 kilograms of flour in the bag. What is the percent decrease in the amount of flou

Answers

Answer: 56.64%

Step-by-step explanation:

Given: Previous amount of flour = 2.26 kilograms

By the end of the baking session, amount of flour = 0.98 kilograms

Decrease in amount = 2.26-0.98 = 1.28  kilograms

Percent decrese = [tex]\dfrac{\text{decrease in amount }}{\text{previous amount}}\times100[/tex]

[tex]=\dfrac{1.28}{2.26}\times100\approx56.64\%[/tex]

Hence, the percent decrease in the amount of flour = 56.64%

m/9 - 9 = -8. please help

Answers

m=9!!!!!!!!! jehdhshhsbe

Name a set of vertical angles

Answers

Answer:

EKH and FKG

Step-by-step Explanation:

you could choose any sets with a common vertex. i just chose those two

Find the center and radius of the equation of the circle
a). x2 + y2 – 8x +6y + 9 = 0​

Answers

Compare the given equation with the general equation of a circle

Given equation: x² + y² - 8x +6y +9 = 0

Equation of a circle: x² + y² + 2gx + 2fy + c = 0

2g= -8; g = -8÷2= -4

2f = 6; f = 6÷2 = 3

c= 9

Solving for radius of the circle...

r =√g² + f² - c

g= -4, g² = ±16

f = 3, f² = 9

Substituting, we have

r = √16 + 9 - 9

r = √25-9

r=√16

r = 4

Therefore, the centre and radius of the circle is 9 and 4 respectively.

Hope this helped!

Please mark brainliest;-)

Find the length of side x in simplest radical form with a rational denominator.

WILL GIVE BRAINLIEST!!!

Answers

Answer:

x=3

Step-by-step explanation:

The triangle has angles 30,60,90

In this type of right triangle, the ratio of the sides is 1:square root of 3:2

In this type of triangle, the square root of 3 is equal to the 1 in the ratio above because it is across from the angle 30

With this, we multiply the ratio at the top by the square root of 3

since x is across the angle 60, we multiply square root of 3 by the square root of 3 which equals 3.

I hope this makes sense

How do you write this in index form?

Answers

The general form is nthroot{a} in index form looks like this: a^(1/n).

Let's rationalize the denominator first.

Doing so, we get (1/2)sqrt{2}.

In index form, the sqrt{2} = 2^(1/2).

We now have (1/2)[2^(1/2)].

Is this clear?

what is -40+7r=-5(8+5r)

Answers

Answer:

r= -40/9 or r=-4 4/9

Step-by-step explanation:

You're welcome :)

Find the percent increase round to the nearest percent

From 42 acres to 72 acres

Answers

Answer:

58.333333 percent

Step-by-step explanation:

58 percent

I took 42 divided by 72 times 100

let a(-a -b) b(-a -b) distance between two points
fast ​

Answers

Answer:

A(-a,-b)and B(-a,-b) be

distance between AB= square root(x2-x1)^2+(y2-y1)2

AB= square root (-a)-(-a)^2+(-b)-(-b)^2

AB= squareroot (-a+a)^2+(-b+b)^2

AB= square root (0)^2+(0)^2

AB=square root 0+0

AB= square root 0

AB=0 answer

this may help you !!!!!

did you know that if you smile you can breath.






just kidding just wanted to see you smile ​

Answers

Answer:

How do I keep falling for this trick!???

Awwwwwwwwwwww tyyyyy <3

A rectangular swimming pool is surrounded by a deck as shown. The area (in square feet) of the pool is represented by x^2-10x+16. a. Write a binomial that represents the width of the pool. b. Find the perimeter of the pool when the width of the deck is 17 feet.

Answers

Answer:

Step-by-step explanation:

First we need to factorize the given area of the rectangle as shown;

Given

A(x) = x^2-10x+16

Factorize

A(x) = x²-8x-2x+16

A(x) = (x²-8x)-(2x+16)

A(x) = x(x-8)-2(x-8)

A(x) = (x-2)(x-8)

Since area of a rectangle = length ×width

Hence the binomial that represents the width of the pool is w(x) = x-2

b) If the width of the deck is 17feet

Width = x-2

17 = x-2

x = 17+2

x = 19feet

Get the length

Length = x-8

Length = 19-8

Length = 11

Get the perimeter

P = 2(L+W)

P = 2(17+11)

P =2(28)

P = 56feet

Perimeter of the deck is 56feet

hey, this is homework that is due today❤️ feel free to help thank you ☺️ have a g❤️❤️d day☺️

Answers

Answer:

About $1.82

Step-by-step explanation:

What is a single equivalent percentage change for a 40% decrease followed by a 20% decrease

Answers

Answer:

200

Step-by-step explanation:

Some equations have the form y=kx, where k is a number.

Which equation CANNOT be written in the form y=kx?

y=x

y=x+3

y/2=x

y= ‐1/10x

Answers

Answer:

y=x+3

Step-by-step explanation:

The equation "y=x+3" cannot be written in the form y=kx because the form doesn't use addition as a basic operation. Let's try verifying the choices:

y=x is possible if the value of k is 1, provided that both y and x are of the same value.

y/2=x is possible because y=2x, provided that 2 is the value of k.

y=-1/10x is possible because -1/10 is the value of k. This is just the same with y=kx.

Mr.Hollis determines that he gives away $800 each month if he gives away 16% of his budget, how much is his overall budget

Answers

his budget is $5000

you take 800 and divide it by 0.16

gives you 5000

Find the value of y. -6y + 14+4y=32.
A.18.
B.1.8.
C.-9.
D.9

Answers

Answer:

Step-by-step explanation:

-6y+14+4y=32
Combine the like terms together
-6y+4y+14= 32
-2y+14= 32
Move + 14 to the other side
Side changes from +14 to -14
-2y+14-14=32-14
-2y= 18
Divide both sides by -2
-2y/-2=18/-2
y= -8

Answer : C.-9

What is the volume of a container that is 5cm tall by 10cm long and 4cm deep

Answers

200 cm^3

10 * 5 * 4 that makes 200

Answer:

200cm³

Step-by-step explanation:

lenght×width×height=Volume

10cm×4cm×5cm=200cm³

Help me plzzzzzzzzzzzzzz

Answers

Answer:

Step-by-step explanation:

you can't get the answer if you don't know x

Samantha buys $128 worth of goods at a 25% discount. If the sales tax rate is 6.4%, what is the total amount she will pay?

Answers

Answer:

To do this, you need to find the amount of discount of the original price. To find a percent of a number you first convert the percent to a decimal (i.e. 25% = 0.25). Then you multiply this decimal by the original price. Therefore, the sale price is $17.21. If example.

Step-by-step explanation:

Answer:

102.144

Step-by-step explanation:

128 times 0.25 = 32

128 - 32 = 96

96 times 1.064 = 102.144

She will need to pay 102.144

Tres hermanos pintarán la fachada de su casa. Alejandro pinta
3
8
de la casa durante el primer día.

Alberto pinta
4
9
de la casa durante el segundo día. Para el tercer día, Alan debe pintar lo que queda.

¿Qué porción de la casa le corresponde pintar a Alan?

Answers

Answer:

La porción de la casa que le corresponde pintar a Alan es [tex]\frac{13}{72}[/tex]

Step-by-step explanation:

Sabes que Alejandro pinta 3/8 de la casa durante el primer día, mientras que Alberto pinta 4/9 de la casa durante el segundo día. Entonces, la porción pintada de la casa durante esos dos días es la suma entre la porción pintada por Alejandro y la porción pintada por Alberto:

[tex]\frac{3}{8} +\frac{4}{9}[/tex]

Un método para sumar fracciones con distinto denominador consiste en buscar el común denominador de las fracciones que se van a sumar. Para ello se multiplica los denominadores de las fracciones: 8*9= 72. El común denominador se divide entre el denominador de la primera fracción.   El resultado de la división se multiplica por el numerador de la misma fracción. Una vez que se divide y se multiplica, el resultado se coloca en el numerador con el signo correspondiente. Se realiza el mismo procedimiento con la otra fracción y se realiza la suma con los numeradores resultantes.

Entonces, en este caso se obtiene:

[tex]\frac{3}{8} +\frac{4}{9}=\frac{27+32}{72} =\frac{59}{72}[/tex]

Entonces, para calcular la porción de la casa que le corresponde pintar a Alan, y considerando que 1 representa un entero, la totalidad de la casa que se desea pintar, se realiza la resta entre la totalidad de la fachada a pintar y la porción pintada por Alejandro y Alberto:

[tex]1-\frac{59}{72}[/tex]

Considerando que el procedimiento de la resta es similar a la suma, se obtiene:

[tex]1-\frac{59}{72}=\frac{72-59}{72} =\frac{13}{72}[/tex]

La porción de la casa que le corresponde pintar a Alan es [tex]\frac{13}{72}[/tex]

Multiply. Answer with a mixed number in simplest form.

5 x 2 1/4

Answers

Answer:

The correct answer should be 11[tex]\frac{1\\}{4}[/tex]

Step-by-step explanation:

Let me know if this is wrong and I will correct it if it is.

Q» 7. A party hat is shaped like a cone. The dimensions of the party hat are shown in the diagram On O 1,017.88 in. O 254.47 in.3 O 84.82 in. 9 in. O 339.29 in. 3 CLEAR ALL 6 in. Which measurement is closest to the volume of the party hat in cubic 2.​

Answers

Answer:

The answer is 84.82 in^3

Step-by-step explanation:

can someone please help and explain ​

Answers

Answer:

Im not sure how you are supposed to answer this but they are similar by side angle side

Step-by-step explanation:

We are given that NO/OQ=PO/OM

This tells us that the sides are in a ratio.

We also know that angle NOM is equal to angle POQ

Now we have 2 sides and 1 angle thus they are similar by side angle side

I hope this helps you come up with your statements and reasons

Answer:

I think the answer is scalpel porators

Step-by-step explanation:

Completing Proofs Involving Linear Pairs

Given: m ZELG = 124°

Prove: x = 28

Statements

Reasons

1. m ZELG = 124

1. given

2. m ZELD = 2x

2. given

H

L

3. ZELG and ZELD are

a linear pair

3. definition of a linear pair

(2x)

G

4. m ZELD + m ZELG = 180

4.

Ε

• F.

5. 2x + 124 = 180

5. substitution

Complete the steps in the two-column proof.

6.

6. subtraction property

7. x = 28

7. division property

Intro

Done

vity

Answers

Answer:

1. angle addition post

2. 2x=56

The corresponding angles of the lines solved and the value of x = 28°

What are angles in parallel lines?

Angles in parallel lines are angles that are created when two parallel lines are intersected by another line. The intersecting line is known as transversal line.

We can conclude three factors determining parallel lines ,

Alternate angles are equal

Corresponding angles are equal

Co-interior angles add up to 180°

Given data ,

Let the measure of ∠ELG = 124°

The measure of ∠ELD = 2x

∠ELG and ∠ELD are a linear pairs of angles

So , the measure of ∠ELG  + ∠ELD = 180°

On simplifying , we get

2x + 124° = 180°

Subtracting 124° on both sides , we get

2x = 56°

Divide by 2 on both sides , we get

x = 28°

Therefore , the value of x is 28°

Hence , the angle is x = 28°

To learn more about angles in parallel lines click :

https://brainly.com/question/27400033

#SPJ7

I need someone to check my work..

Answers

Answer:

2x-8y=24
8y=24-2x
Change the signs
8y-24+2x
Divide both sides by 8
y=-3+1/4x
Reorder
y=1/4x-3

Yep your correct.


Mae Ling earns a weekly salary of $390 plus a 5.0% commission on sales at a gift shop.
How much would she make in a work week if she sold $4,100 worth of merchandise?

Answers

Answer:

$595 dollars in a week

Step-by-step explanation:

We know that Mae Ling earns $390 per week plus sales commissions of 5.0%, if we express this would be: (x refers to sales)

[tex]Earnings = $390 + 0.050x[/tex]

So, it would be:

[tex]Earnings = $390 + 0.050(4100) = $595[/tex]
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