a school has 1800 students 55 %of the students of girls. how many boys are in the school?​

Answers

Answer 1

Answer:

810 boys

Step-by-step explanation:

1800 students and 55% are girls.

100%-55%=45%

1800*0.45 = 810

1800*0.55 = 990

So there are 990 girls and 810 boys.

Hope this helps :)


Related Questions

1. Choose the correct common fraction.
0.13
0.3
none of these
1/3

Answers

Ans. 3 None of these

Kim finds a 1-meter tree branch and marks it off in thirds and fifths. She then breaks the branch along all the markings and removes one piece of every distinct length. What fraction of the original branch remains

Answers

Answer:

3/5

Step-by-step explanation:

We want to find the fraction of the original branch that remains, so we will assume a length of the branch in order to make our calculation easier.

Since Kim marks it off in thirds and fifths, let's find the least common multiple of 3 & 5.

Least common multiple of 3 & 5 is 15.

Thus,let's make the length of the branch to be 15-meter long.

Now, if the branch is 15 m long, considering the markings of thirds and fifths, the branch would be cut at:

3, 5, 6, 9, 10, 12 meters.

We are told that She then breaks the branch along all the markings and removes one piece of every distinct length. Thus;

Distinct lengths are;

3 metres

5 - 3 = 2 metres

10 - 9 = 1 meter

Total she removes = 3 + 2 + 1 = 6 meters.

Total remaining is;

15 - 6 = 9 meters

Expressing this as a fraction of the original branch gives:

9/15

Divide both numerator and denominator by 3 to get; 3/5

What is the equation of the line that has a slope of Y and contains the point (0, 3)?

Answers

Answer:

B

Step-by-step explanation:

if you take your anwser and multilpy it by the factor you get B

Answer:

equation of line in y

Step-by-step explanation:

slope Y and given point (0,3)

y=3

or y-3=0

Plss can someone help me out with thissss!!!!!!!!!!!

Answers

if there aren’t any degrees and it doesn’t state that the triangle is equilateral then you cannot solve this equation without more information

1,615 / 10 the the power of 2

Answers

Answer: 1,615/10^2 = 16.15

Please Help me!! It's for testing!

Jude is going from his house to the library. He walks as a rate of 100 yards per minute and bikes as a rate of 300 yards per minute. On his way to the library, Jude walks for 12 minutes and then rides his bike the rest of the way. The library is 6000 yards from his house.

How many minutes did it take Jude to go from his house to the library?

22 Minutes
28 Minutes
30 Minutes
48 Minutes

Answers

Answer:

28 minutes

Step-by-step explanation:

100 yards times the 12 minutes he walked = 1200 yards. 6000-1200=4800

4800÷300=16

16 + 12 = 28

Answer:

28 Minutes

Step-by-step explanation:

The library is 6000 yd from the house.

He walks at a rate of 100 yd per minute for 12 minutes, which is 1200 yd of progress.

He bikes the rest of the 4800 yd on his bike at a rate of 300 yd per minute.

4800/300=16 minutes.

16+12=28 minutes.

The areas of two rectangles can be represented by the functions shown. Which function represents the difference in the areas, h(x) = f(x) – g(x)? h(x) = 4x2 – 4x – 11 h(x) = 4x2 – 4x + 11 h(x) = –4x2 + 4x + 11 h(x) = 4x2 – 4x – 9

Answers

Answer:

x ^2 + 5x

Step-by-step explanation:

Let the area of the two triangles be expressed as;

f(x)= 4x^2+6x

g(x)=3x^2-x

Taking the difference

h(x) = f(x) - g(x)

h(x) = 4x ^2+6x - 3x^2-x

Collect like terms'

h(x) = 4x ^2 - 3x^2+6x-x

h(x) = x ^2 + 5x

Hence the difference is  x^2 + 5x

Note that the functions were assumed. The same methos can be applied to any other given functions.

Answer:

B: h(x) = 4x2 – 4x + 11

Step-by-step explanation:

I just did the assignmement on EDGEN and it's 200% correct!!

Also, heart and rate if you found this answer helpful. (P.S it makes me feel good to know that I helped someone today!!)

What is the value of x?

Answers

Answer:

the value of x is one of those answers i can tell you son

Step-by-step explanation:

and it is NOT 3/4 thast FOR SURE

H(n)=-91\cdot\left(-\dfrac{1}{7}\right)^{\large{\,n-1}}h(n)=−91⋅(− 7 1 ​ ) n−1 h, left parenthesis, n, right parenthesis, equals, minus, 91, dot, left parenthesis, minus, start fraction, 1, divided by, 7, end fraction, right parenthesis, start superscript, n, minus, 1, end superscript Complete the recursive formula of h(n)h(n)h, left parenthesis, n, right parenthesis.

Answers

Given:

[tex]h(n)=-91\cdot\left(-\dfrac{1}{7}\right)^{\large{\,n-1}}[/tex]

To find:

The recursive formula.

Solution:

We have,

[tex]h(n)=-91\cdot\left(-\dfrac{1}{7}\right)^{\large{\,n-1}}[/tex]

It is in the form of explicate formula of a GP, .i.e., [tex]a_n=ar^{n-1}[/tex].

Here, [tex]a=-91[/tex] and [tex]r=-\dfrac{1}{7}[/tex].

The recursive formula of a GP is

[tex]a_n=a_{n-1}\times r[/tex]

Using this the recursive formula for given problem is

[tex]h(n)=h(n-1)\times (-\dfrac{1}{7})[/tex]

Therefore, the required recursive formula is [tex]h(n)=h(n-1)\times (-\dfrac{1}{7})[/tex].

please help me on this! will give you brainliest, thank you.

Answers

Answer:

a=music

b=3

c=mary and dan

Step-by-step explanation:

a) music

b) 3 students

c) Mary and Dan

PLS HELP I NEED AN ANSWER ASAP

Answers

Answer:

4/sin (35)

Step-by-step explanation:

sin(35)=4/AB

It is 4/sin =35 hope it help

HELP ASAP An office employee ears $600 weekly. Find the equivalent earnings if paid biweekly, semimonthly, monthly, and annually

Answers

1200~bi-weekly

1200~semimonthly

2400~monthly

31,200~annually

which one is greater 1.72 or 1.720

Answers

Answer:

there equal.

Step-by-step explanation:

Answer:

They are equal.

Step-by-step explanation:

If there is a 0, it doesn't necessarily mean they are different numbers.

When a figure is​ rotated, does every point move the same​ distance? Explain. *
No. The angle of rotation is different for each​ point, and each point and its image​ are, therefore, different distances from the center of​ rotation, so the distance each point moves varies.
Yes. Since the angle of rotation is the​ same, the distance that each point moves is the same.
No. Although each point is rotated through the same​ angle, points that are different distances from the center of rotation move different distances.
Yes. When rotating a​ figure, the rotation indicates that each point moves the same​ distance, such that the angle of rotation may vary from point to point.

Answers

Answer:

Yes. Since the angle of rotation is the​ same, the distance that each point moves is the same.

Step-by-step explanation:

Answer Yes. Since the angle of rotation is the​ same, the distance that each point moves is the same i think

Step-by-step explanation:


2(x + 7) + 3 x = 12
what is the first step In solving this equation for x?

Answers

Answer:

The first step would be to distribute that 2 into the numbers in the parenthesis.

Step-by-step explanation:

Answer:

Step-by-step explanation:

I feel like there are many ways to begin this problem, but I'd distribute the 2(x+7) so that you are left with 2x+14. This way you can add 2x and 3x and subtract 14 to the other side.

The angle between the generator and the central axis of a double-napped cone is 50°. Which conic section is formed
when a plane intersects the central axis at 50°?

circle
ellipse
parabola
hyperbola

Answers

Answer: (1) (A) circle
Explanation:

0 = 4(3.14)/5 ;r = 9 cm

Answers

Answer:

i don't think i know the answer to your question

Step-by-step explanation:

Solve the following equations
3x-6y=14
y=x+4

Answers

Answer:

y=2

Step-by-step explanation:

\©°©°©°¥=¥=€=€°`°€°€°%=

x= -38/3
y= -26/3
(Those are fractions the first number goes on top and the second number goes on the bottom in case you didn’t know :) )

6(2a + b) + b A. 12a + 12b B. 12a + 7b C. 8a + 8b D. 8a – 8b

Answers

Answer:

Step-by-step explanation:

6(2a + b ) +b

12a + 6b +b

12a + 7b

so  answer B looks good

Answer: B) 12a+7b

Step-by-step explanation:

6(2a+b) +b

12a+6b+b

Combine like terms

12a+7b

Therefor B is correct

On a certain day, a bakery produced a batch of rolls at a total production cost of $300. On that day, 4 5 of the rolls in the batch were sold, each at a price that was 50 percent greater than the average (arithmetic mean) production cost per roll. The remaining rolls in the batch were sold the next day, each at a price that was 20 percent less than the price of the day before. What was the bakery's profit on this batch of rolls

Answers

Answer:

$108

Step-by-step explanation:

Let number of rolls produced = [tex]x[/tex]

Total production cost = $300

Average production cost can be found by dividing the total production cost with the number of rolls produced.

Average production cost per roll = $[tex]\frac{300}{x}[/tex]

[tex]\frac{4}{5}[/tex] of the rolls were sold at a price 50% higher than the average production cost per roll.

i.e.

Money earned by selling [tex]\frac{4}{5}[/tex] of the rolls:

[tex]\dfrac{4}{5}x \times \dfrac{300}{x}\times \dfrac{150}{100}\\\Rightarrow \$360[/tex]

Money earned by selling the remaining the remaining rolls:

[tex]\dfrac{1}{5}x\times \dfrac{300}{x}\times \dfrac{80}{100}\\\Rightarrow \$48[/tex]

Total money earned by selling all the rolls = $360 + $48 = $408

Total profit can be calculated by subtracting the total production cost from the total money earned.

Total profit = $408 - $300 = $108

A virtual reality headset lists for $719. Find the net cost after trade discounts if the series discount is 10/30.

Answers

Answer:

479.33

Step-by-step explanation:

10/30 is the same as 1/3 or 33.34%.

Multiply the fraction to the original price then subtract.

719 * 1/3 = 239.67

719 - 239.67 = 479.33

Best of Luck!

3. 'a' and 'b' are the intercepts made
by a straight-line with the co-
ordinate axes. If 3a = b and the line
pass through the point (1, 3), find
the equation of the line.​

Answers

Given:

'a' and 'b' are the intercepts made  by a straight-line with the co- ordinate axes.

3a = b and the line  pass through the point (1, 3).

To find:

The equation of the line.

Solution:

The intercept form of a line is

[tex]\dfrac{x}{a}+\dfrac{y}{b}=1[/tex]         ...(i)

where, a is x-intercept and b is y-intercept.

We have, 3a=b.

[tex]\dfrac{x}{a}+\dfrac{y}{3a}=1[/tex]           ...(ii)

The line  pass through the point (1, 3). So, putting x=1 and y=3, we get

[tex]\dfrac{1}{a}+\dfrac{3}{3a}=1[/tex]

[tex]\dfrac{1}{a}+\dfrac{1}{a}=1[/tex]

[tex]\dfrac{2}{a}=1[/tex]

Multiply both sides by a.

[tex]2=a[/tex]

The value of a is 2. So, x-intercept is 2.

Putting a=2 in [tex]b=3a[/tex], we get

[tex]b=3(2)[/tex]

[tex]b=6[/tex]

The value of b is 6. So, y-intercept is 6.

Putting a=2 and b=6 in (i), we get

[tex]\dfrac{x}{2}+\dfrac{y}{6}=1[/tex]

Therefore, the equation of the required line in intercept form is [tex]\dfrac{x}{2}+\dfrac{y}{6}=1[/tex].

hey it is pretty late i hope u get your work done and get good sleep and have some points

Answers

Answer:

Thanks for the points. ❤❤

SIMPLE CORDINATE PLOTTING! BRAINLIEST, 5 STAR, AND A LIKE ON UR ANSWER. SHOW SOME WORK.

Answers

Answer:

A

Step-by-step explanation:

( 2, -5 )

( -2, -5)

Hope this helps dude

Answer:

A is your answer :)

Step-by-step explanation:

is it bad if you over think to much (ik its not question but i really dont no one to talk to rn so ....)

Answers

if you get the right answer, no. if you get the wrong answer yes

it all depends on what the question is and such

Answer: No not unless it affects you and your mental health

Step-by-step explanation:

Im a huge over thinker and i blame myself for a lot of things that arent even my fault. Over thinking things isnt always the best way to go you should always have someone to talk to. If your feeling worthless or down just know you are enough! You are perfect and dont try to change it for anyone. Its not bad to overthink unless it affect you so greatly that it hurts to smile. I know times are tough right now but you will get through it just stay strong. I hope this helped :)

In triangle ABC, m_A = 55°, m B = 30°, and a = 8. Which equation should you
solve to find b?

Answers

Answer:

B) sin55/8 = sin30/b

Step-by-step explanation:

Just did it on AP3X :)

evaluate 2/3 (10-6) 1/2

Answers

Answer:

[tex] = \frac{2}{3} (10 - 6) \frac{1}{2} [/tex]

[tex] = \frac{2}{3} (4) \frac{1}{2} [/tex]

[tex] = \frac{8}{3} \times \frac{1}{2} [/tex]

[tex] = \frac{4}{3} [/tex]

2)
1.) 3x+3y 6
2x+2y=4​

Answers

Answer:

y este egal cu 1

x este egal cu un

Step-by-step explanation:

2 plus 2 egal cu patru( adica 2 ori unu plus 2 ori 1)

La fel si la cea cu 3.

Sper că te am ajutat!!!

Therefore,

X=0

Y=2

,,,The solution is above in the picture

Do sb know da answerrrrr ?

Answers

Answer:

If I’m not wrong I think it’s the first one

Step-by-step explanation:

Gabby spent 44.10 for 14 gallons of gas. What was the unit cost, or price per gallon

Answers

It would be 3.15 per gallon
Because
44.10/14=3.15

Hope this helps

Have a great day/night
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