Ina school 3/7 of the student are girls if there are 240 boys, find the number of girls​

Answers

Answer 1
7/7 = x
3/7 = 240

7/7 x 240 = 240
240/ 3/7 = 560
there is 560 kids
560-240(all kids - girls)
there is 320 boys
Answer 2

The number of Girls in a school is 180.

Find the number of girls​.

There are girls in a school = 3/7

Number of boys in a school = 240

Assume that there are x students in a school.

Number of Girls = 3/7 of All Students.

= 3/7 of x

= 3x/7

We know that,

Total Students = Number of Boys + Number of Girls.

240 + 3x/7 = x

240 = x - 3x/7

240 = (7x - 3x) /7   (Taking L.C.M.)

240 × 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

= 180

So,  the number of Girls in a school is 180.

Learn more about problems on find the number.

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Related Questions

1 What is an appropriate "2nd step" when solving the equation below? 2/3x - 8= 12 Add 8 to each side. Divide both sides by 3. Multiply both sides by 2. Multiply both sides by 3/2.

Answers

Answer:

multiply both sides by [tex]\frac{3}{2}[/tex]

Step-by-step explanation:

Given

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

first step

Add 8 to both sides

[tex]\frac{2}{3}[/tex] x = 20

second step

Multiply both sides by [tex]\frac{3}{2}[/tex] to clear the fraction

x = [tex]\frac{3}{2}[/tex] × 20 = 30

What's the value of x to the nearest tenth? Question 12 options: A) 7.9 B) 9.7 C) 5.9 D) 8.1

Answers

Answer:

The value is 9.7

Step-by-step explanation:

Use the Pythagorean theorem. [tex]a^{2} + b^{2}= c^{2}[/tex]

a=7 b=x c=12

[tex]7^{2} + x^{2}= 12^{2}[/tex]

[tex]49+x^{2} =144[/tex]

[tex]144-49=95[/tex]

[tex]x^{2} =95[/tex]

[tex]\sqrt{ x^{2}} =\sqrt{95}[/tex]

x=9.74679434481

x=9.7

Given the formula C = 5(f-32)/9, find the value of C if F is 68

Answers

Answer:

Step-by-step explanation:

C = 5(68 - 32)/9

   = 5(36)/9

    = 180/9 = 20

C = 20

can some one simplify for x
12=7x+6-5x

Answers

Answer:

x = 3

Step-by-step explanation:

12 = 7x + 6 -5x        {Combine like terms}

12 = 7x - 5x + 6

12 = 2x + 6           {Subtract 6 from both sides}

12 - 6 = 2x

      6 = 2x                  {Divide both sides by 2}

    6/2 = 2x/2

3 = x

x = 3

What is the sum of the terms of the series 4 + 7 + 10 + . . . + 22?


91


43


104

Answers

Answer:

Is there a missing number? If there isn't the answer will be 43.

Answer:

the answer will be 43 np

I need someone to explain functions and functional symmetry to me. This is very important, so if you do not have a legit answer, you will get reported.

Answers

Symmetrical functions can be about the x and y axis. Essentially, if we reflect the graph across the y or x axis, we get the same graph. Some other graphs can be reflected across both the x and y axis at the same time and be symmetrical. These can be classified as odd and even functions. You can test this by replacing x and y with -x and -y and simplify the equation. If the results comes out to be the same as the original, it is symmetrical across the origin.

Best of Luck!

Answer:

a shape that has reflective symmetry either x or y axis of origin.

in other words...  it's a mirror image.

whats a+d+k+8? i need a answer ASAP

Answers

since the variables are just variables and the value of them is unknown, i’m pretty the answer is 8adk, because 8 is the only number in this problem and you can’t find the sum of a letter and a number

PLEASE HELP URGENT! 25 POINTS

Find x:


(If you can please explain how I can figure this out on my own

Answers

Answer:

56°

Step-by-step explanation:

a straight line is 180° and 124° subtracted from 180° is 56°

If you're going 60 miles per hour, how many hours is that? So, in other words, what does "per" mean? How many is "per"?

Answers

Answer:

Per pretty much means 1. So for example if I say I'm going 12 miles PER hour it means 12 miles every 1 hour.

Pls help I don’t understand

Answers

Answer

B) a bisector
Answer
B) bisector!!!

2. Deena drove 585 miles in 9 hours. How fast did she drive in 1 hour?​

Answers

Answer:

Deena drove 65 miles in 1 hour

Step-by-step explanation:

hope it helps

Bethany makes 50 hotdogs to divide equally between 6 people. How many hotdogs does each person get?

Answers

Step-by-step explanation:

soltion

hotdog=50

people =6

dividing equally to each people

A person got=50/6

=8.33

so each got 8.33

but practically we cannot give it 8.33 to each so we can give 8 to each

Whoever answers first gets the brainliest Given: f(x)=|x|-3 What direction does the graph move ?______ How far?______

Answers

Answer:

3 units down

Step-by-step explanation:

Compared to

f(x) = |x|,

f(x) = |x| - 3 moves 3 units down.

There are three consecutive integers. Four times the smallest integer is equal to six more than three times the smallest integer. What is the smallest of the 3 integers?

Answers

Let the smallest integer equal x - 1, the next one equal x, and the last one equal x + 1.

4(x-1) = 3(x-1) + 6

x-1 = 5

x = 6

The smallest integer is x - 1, which is equal to 5. Thus, the smallest of the three integers is 5.

Compare an angle having a measure of 120° With that of an angle whose measure is five pi over 6 rad explain your reasoning

Answers

Answer:

Step-by-step explanation:

et A=120°

and B=5Pi /6

Pi radians ---------> 180°

  x<----------------------- 120°

so x =120 x Pi / 180 = 12 xPi / 18 = 2 Pi/3

so A = 2Pi / 3 radian  

let 's compare A and B

we know that 5Pi /6 = 0.8 Pi and  2P/3= 0.6 Pi, 0.8>0.6,  

finally 5Pi /6 > 2P/3

so B>A

2.9/2.2 X 2.6 find the estimate round to one signifcant figure with each number.

Answers

Answer:

= 2.9/ 5.72

= 0.50

Round off to one significant figure.

= 1

Step-by-step explanation:

=2.9/5.72

=0.50

Therefore significant figure = 1

please mark as a brainlest

Patrick left an $8 tip on a $50 restaurant bill. What percent tip is that?

Answers

Do 50 multiplied by x = 8. Solve for x.
It would give you .16 which is 16%.

Solve: −6x+4≤−16−2x . Express your answer in interval notation. (Express your answer in interval notation. Use U to indicate a union of intervals, and "oo" to express ∞)

Answers

Answer:

  [5, oo)

Step-by-step explanation:

Add 6x+16 to both sides:

  20 ≤ 4x

  5 ≤ x . . . . . . divide by 4

The solution interval is [5, oo).

Answer:

A is the answer

Step-by-step explanation:

Christina is paid biweekly. Her annual salary is 37,500. What is her biweekly salary, rounded to the nearest cent?

Answers

Answer:

$1,423.08

Step-by-step explanation:

[tex]\frac{37000}{26} = 1,423.076[/tex] rounded to the nearest cent it becomes 1,423.08.

*Remember that there are 26 biweekly periods in a year. Divide her annual salary (37,500) by 26.

The biweekly salary, rounded to the nearest cent is 1,423.08.

It is required to find the solution.

What is rounded number?

A number that is easily multiplied, divided, etc., and especially a number that ends in zero.

Given :

Christina is paid biweekly. Her annual salary is 37,500.

According to given question we have,

We know that there are 26 biweekly periods in a year. Divide her annual salary (37,500) by 26.

37500/26=1423.076

Rounded to the nearest cent it becomes 1,423.08.

Therefore, the biweekly salary, rounded to the nearest cent is 1,423.08.

Learn more about rounded number here:

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#SPJ6

Use the commutative property to write an equivalent expression to 4g + 13, and show that they are equivalent for g = 10 and g = 2. Complete the statements. If you change the order of the terms you can create the equivalent expression . After substituting 10 for g, the expressions are and . After substituting 2 for g, the expressions are 4(2) + 13 and 13 + 4(2). The expressions are equivalent because they both have a value of when g = 10 and a value of when g = 2.

Answers

Answer: 1= ( 13 + 4g )

2= ( 4(10) + 13 )

3= ( 13 + 4(10) )

4= ( 53 )

5= ( 21 )

Step-by-step explanation:

The equivalent expression by cumulative property is,

                    [tex]4g+13=13+4g[/tex]

Commutative property :

The commutative property states that the numbers on which we operate can be moved or swapped from their position without making any difference to the answer.

                      [tex]a+b=b+a[/tex]

Given expression is,  [tex]4g+13[/tex]

The equivalent expression by cumulative property is,

                    [tex]4g+13=13+4g[/tex]

For [tex]g=10[/tex],    

                    [tex]4(10)+13=13+4(10)\\\\40+13=13+40\\\\53=53[/tex]

Learn more about the  commutative property here

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A number y plus 7 is at least 16

Answers

Answer:

yes

Step-by-step explanation:

you are correct

Answer/Step-by-step explanation:

[tex]16-7=9[/tex]

Therefore [tex]y\geq9[/tex]

There was no picture to go off of, but this should be correct anyways!

Please mark Brainliest!!! =D

Naomi invested $270 in an account in the year 2004, and the value has been growing
exponentially at a constant rate. The value of the account reached $300 in the year
2006. Determine the value of the account, to the nearest dollar, in the year 2011.

Answers

Answer:

390

Step-by-step explanation:

100% CORRECT

Can someone help with this

Answers

Draw a triangle then use pythagoras theorem

Answer:

[tex]GH=2\sqrt{10}[/tex]

Step-by-step explanation:

Considering each is square is 1x1.

We have the points G(-2, -3) and H(0, 3).

Using the distance formula:

[tex]$d=\sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}$[/tex]

[tex]$d=\sqrt{(-2 - 0)^2 + (-3 - 3)^2}$[/tex]

[tex]$d=\sqrt{(-2 )^2 + (-6)^2}$[/tex]

[tex]$d=\sqrt{4 +36}$[/tex]

[tex]d=\sqrt{40}=2\sqrt{10}[/tex]

Also, using the Pythagorean theorem:

[tex]a^2+b^2=c^2[/tex]

[tex]2^2+6^2=c^2[/tex]

[tex]4+36=c^2[/tex]

[tex]c=GH=\sqrt{40}=2\sqrt{10}[/tex]

compare 5.7145 repeating and the square root of 29

Answers

Answer:0.3293

Step-by-step explanation:

answer for p=2l+2w for l

Answers

Answer:

[tex]I=\frac{p-2w}{2}[/tex]

Step-by-step explanation:

[tex]p=2I+2w\\\\p-2w=2I+2w-2w\\\\p-2w=2I\\\\\frac{p-2w}{2}= I[/tex]


Question 3 of 10
Is ACOW- APIG? If so, identify the similarity postulate or theorem that
applies

Answers

Answer: D) Cannot be determined

Explanation:

Choice A isn't the answer because we don't know anything about the angles, so we can't use the AA (angle angle) Similarity theorem.

Choice B isn't the answer because we don't have info about all three pairs of sides (we only have two pairs of sides).

Choice C isn't the answer in a similar way choice A isn't either. We don't know anything about the angles, so we can't use the "A" in "SAS".

Choice D is the only thing left. It turns out we don't have enough info to be able to determine if the triangles are similar or not.

Given that f(x) = 2x - 2 and g(x) = 5x. Find the value of f(0) + g(3).

Answers

Answer: 13

Step by step explanation:
f(0)=2(0) - 2
=0 - 2
= -2
g(3) = 5(3)
= 15
f(0) + g(3)
= -2 + 15
=13

8 Level Problems (Challenging, Unfamiliar)
4. In a right triangle, the hypotenuse is 3 times the length of the shorter leg. The longer leg is 5cm. Find
the length of the hypotenuse.

Answers

Answer:

h = 15√3/4

= 6.4875

≈ 6.5 cm

Step-by-step explanation:

h = 3x

c₁ = 5 cm

c₂ = x

Pythagoras

h² = c₁² + c₂²

(3x)² = 5² + x²

9x² = 25 + x²

8x² = 25

x² = 25/8

x = √25/8

x = 5/2√2

x = 5√2/4

h = 3x

= 3×5√2/4

= 15√2/4 cm

A class has 30 boys and 20 girls. The average age of
boys is 12 yrs and girls 12 yrs. What is the
average age of the whole class."​

Answers

Answer:

class has 30 boys and 20 girls the average age of boys is 12yr and girls 12yr

whole age of class is 12 + 12 ÷2

= 24÷2

= 12

Step-by-step explanation:

so the average of whole class is 12

Solve for all values of x by factoring.
x^2 - 5x = -2x

Answers

x^2 - 5x = -2x
1. Move -2x to the left
x^2 -5x + 2x = 0
2. Collect like terms
x^2 - 3x = 0
3. Factor out
x(x-3) = 0
4. Separate into possible cases
x = 0 or x = 3

Answer:

x=0. x=3

Step-by-step explanation:

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