The ratio of students to teachers at a school is 19 : 1. At this school, there are 400 people (teachers and students). How many of these 400 people are students? (enter number only, without the unit)

Answers

Answer 1

Answer:

There are 380 students and 20 teachers.

Answer 2

Answer:

380

Step-by-step explanation:

Let 19x =  no. of students

        x =  no. of teachers

Then,  x + 19x = 400

20x = 400

x = 20

19x = 19(20) = 380


Related Questions

The table below shows all possible outcomes of flipping a coin two times in a row, where H stands for heads and T stands for tails.
Possible
Outcome
Heads/Tails
Combination
HH
HT
2
3
TH
TT
4
Which fraction represents the probability of flipping two tails in a row?

Answers

the answer must be 2/4

Use the information to answer the question.
Molly's hair was 20 inches long. Three years later it was 35 inches long
What was the percent increase, to the nearest hundredth, of Molly's hair length? Enter the answer in the box.
percent

Answers

The answer is 75%

This has nothing to do with the problem I just have to write a lot so I can put the answer in

Use the quadratic formula to find both solutions to the quadratic equation
given below.
3x - x + 6 = 0

Answers

Answer:

3x-x+6=0

2x+6=0

2x=-6

x= -6/2

x=. -4

ax+by=? Answer it plzzz

Answers

Answer:

x=

a

y−b

Step-by-step explanation:

Chocolate Cravings sells 6 chocolate covered pretzels for $1.80 and 5 chocolate covered strawberries for $6.00. At this rate, what is the total cost of buying 2 pretzels and 2 strawberries? WHO EVER ANSWERS THIS FIRST WILL GET 45 POINTS AND WILL BE RATED BRAINIEST

Answers

Answer:

60 for chocolate pretzels and 1.50 for strawberry for the total cost will be 2.10$

Step-by-step explanation:

Answer:

the total would be 1.50

Step-by-step explanation:

find the sum of all numbers from 150 to 200 which are divisible by7​

Answers

Step-by-step explanation:

The sum is 1225

Solution : 

The numbers from 150 to 200 divisible by 7 are 154,161 ,168,…., 196

Here, a=154,d=7a=154,d=7 and tn=196tn=196

tn=a+(n−1)dtn=a+(n-1)d …(Formula )

∴196=154+(n−1)×7∴196=154+(n-1)×7 …(Substituting the values )

∴196−154=(n−1)×7∴196-154=(n-1)×7

∴427=n−1∴427=n-1 ∴n−1=6∴n-1=6 ∴n=7∴n=7

Now, we find the sum of 7 numbers.

Sn=n2[t1+tn]Sn=n2[t1+tn] ...(Formula )

=72[154+196)=72[154+196)

=72×350=72×350

=7×175=7×175

=1225

16. During a discount salle, an online video game store sells all puzzle games for $6.00 and all action gernes for
$8.00. Bella plans to spend exactly $19.00 on games from this store.
Which equation represents Bella's purchasing options, where is the number of puzzle games bought and yis
the number of action games bought?
A. (6 + 8) = 404
B. 40+ 62 = 8y
C. 40 +8y=63
D. 6x + 8y = 40

Answers

I think it’s D or a but mostly I would pick d

Christi alters a skirt. She cuts 7 inches off the bottom of the skirt and then adds a 5-inch ruffle to the skirt's remaining bottom edge. Which expression best represents the final length of the skirt?

Answers

Answer: ( x -2 ) inches

Step-by-step explanation:

Let x  = length of skirt.

Given: Christi first cuts 7 inches off the bottom of the skirt and then adds a 5-inch ruffle to the skirt's remaining bottom edge.

Cutting of length will be represented by a negative integer.

The expression best represents the final length of the skirt = x-7+5 inches

= x -2 inches

Hence, the expression best represents the final length of the skirt = ( x -2 ) inches

The value of the square root of 12 is between which two integers? let me know asap

Answers


Let's use the Squeeze Theorem to solve this one. 9 is less than 12, which in turn is less than 16. By taking the square ...
I think it’s helpful

Answer:

The answer to this question is 3 and 4.

A train travels at an average speed of 63.5 miles per hour. At this speed, how far could the train travel in 4.75 hours?

Answers

Answer:

301.625 miles

Step-by-step explanation:

63.5 times 4.75

which equation is equivalent to x+8=21

Answers

the possible answers need to be added
Add the full thing.
So I can answer the question.

How many terms are in 80.6-3p-q

Answers

Answer:

there is 2 terms

Step-by-step explanation:

Answer:

3 terms

Step-by-step explanation

In order to determine the number of terms, count the addition or subtraction signs, then add one.  Here, we have two "term separators" and we also have the first term.  Therefore, there are three terms.

How many solutions does the system of linear equations have? y=6x + 4 y = 3x - 2 ​

Answers

Answer:

5 solutions

Step-by-step explanation:

due to mathimatical change during the slope change

5x + 6 = 5x - 4 does it have an unique solution

Answers

Answer:

No, it does not.

Step-by-step explanation:

As if we attempted to solve for x, 5x & 5x will both cross each other out. There are no values of x that make the equation true.

Solve the system of linear equations below, using substitution method.

8x+9y=368x+9y=36
3x+4y=163x+4y=16

Answers

Given:

The system of equations is

[tex]8x+9y=36[/tex]

[tex]3x+4y=16[/tex]

To find:

The solution of the given system of equations using the substituting method.

Solution:

We have,

[tex]8x+9y=36[/tex]           ...(i)

[tex]3x+4y=16[/tex]            ...(ii)

From (ii), we get

[tex]3x=16-4y[/tex]

[tex]x=\dfrac{16-4y}{3}[/tex]          ...(iii)

Putting this value in (i), we get

[tex]8\left(\dfrac{16-4y}{3}\right)+9y=36[/tex]

Multiply both sides by 3.

[tex]8(16-4y)+27y=108[/tex]

[tex]128-32y+27y=108[/tex]

[tex]-5y=108-128[/tex]

[tex]y=\dfrac{-20}{-5}[/tex]

[tex]y=4[/tex]

Putting y=4 in (iii), we get

[tex]x=\dfrac{16-4(4)}{3}[/tex]

[tex]x=\dfrac{16-16}{3}[/tex]

[tex]x=\dfrac{0}{3}[/tex]

[tex]x=0[/tex]

Therefore, the solution of given system of equations is (0,0).

Match each of the equations with their corresponding graph

Answers

Answer:

Equation A) y = [tex]x^{3} + 2x^{2} - 1[/tex] is Graph E

Equation B) y = [tex]2x^{2} - x -3[/tex] is Graph A

Equation C) y = [tex]\frac{1}{x} +1[/tex] is Graph B

Equation D) y = [tex]2-3x^{2} -x^{3}[/tex] is Graph D

Expand using the distributive property -2(2 + 3x)​

Answers

Answer:

-4-6x

Step-by-step explanation:

Distribute the -2

Answer:

-6x-4

Step-by-step explanation:

when i subtract, wouldn’t you subtract it from 180.

Answers

Answer:

Yes you would

Step-by-step explanation:

Answer:

B = 285°

Step-by-step explanation:

What you would actually do is subtract 75° from 360° since the arrow indicates it's looking for the outside measure of the angle. Drawing a circle around would be 360° all the way around.

360° - 75° = 285°

Thus, 285° is the answer for B.

Explain whether the graph represents a function.

Answers

Answer:

The vertical line test can be used to determine whether a graph represents a function. ... If we can draw any vertical line that intersects a graph more than once, then the graph does not define a function because that x value has more than one output. A function has only one output value for each input value.

pls help guys and pls show working

Answers

An

Step-by-step explanation

Hope it helps boy .

When salt and water are combined, they form a salt or saline solution. How much ml of water must be added to 150 mL of an 80% saline solution to produce a 30% saline solution?

Answers

50%. Might be wrong but all I did was reduce 30% from 80%

Urgent please help..

Answers

Answer:

Dilation means a facor of So b=(-1,1) × 2= b'=(-2,2) I do exams and quizzes if your interested

Answer:

(-2,2)

Step-by-step explanation:

Original is (-1,1) so just multiply by 2 so (-2,2)

An investor has an account with stock from two different companies. Last year, his stock in Company A was worth $6830 and his stock in Company B was worth $2600. The stock in company A has increased 20% since last year and the stock in company B has increased 5%. What was the total percentage increase in the investors stock account?

Answers

Answer:

15.9

Step-by-step explanation:

Find new values:

6830

(

1

+

0.2

)

=

8196

6830(1+0.2)=8196

2600

(

1

+

0.05

)

=

2730

2600(1+0.05)=2730

Last Year This Year

Stock A 6830 8196

Stock B 2600 2730

Total 9430 10926

Find overall increase:

Find overall increase:

9430

(1+r)=

10926

9430(1+r)=10926

9430

(1+r)9430=

0926

9430

9430

9430(1+r)

=

9430

10926

1

+

r

=

1.158643

1+r=1.158643

r

=

0.158643

r=0.158643

Subtract 1

Final Answer:

15.9

%

Final Answer: 15.9%

Multiply by 100 and round to nearest 10th

In GeoGebra, you should see a sketch of William’s kite. You’ll use the sketch to find the lengths of the dowels needed to make the kite. William has indicated that he would like the kite to be AD = 120 cm wide across the bottom, which is labeled on the sketch. Using the width of the kite and the fact that the kite is made from two congruent right triangles, what is AC?

Answers

Answer:

60

Step-by-step explanation:

i added a comment instead of a answer so yeah

Answer:

60 cm

Step-by-step explanation:

AD = 120cm

AC = 1/2 AD = 1/2(120) = 60 cm

I can’t figure this out! I don’t really know if I’m supposed to use the vertices that are on the coordinate plane or something else, I need help. My question is, What’s the area and the perimeter of the polygon????

Answers

Answer:

Area : 27

Perimeter : 24

Step-by-step explanation:

Area : Just count the number of squares in the box

Perimeters : Count the number of squares surrounding the box


Milan is saving money to buy a game. So far he has saved $20, which is four-fifths of the total cost of the game. How much does the game cost?

Answers

Answer:the answer is 16

Step-by-step explanation:

:) hi

Answer:25

Step-by-step explanation: Mangekyou Sharingan

Aaron went shopping for a new camera because of a sale. The store was offering a 10% discount. If the price on the tag was $27, what would be the price after the discount but before tax, to the nearest dollar and cent?​

Answers

Answer:

24.30

Step-by-step explanation:

10/100=.1

27×.1= 2.70

27-2.70=24.30

Khan academy anyone can help me plz on this

Answers

The answer is B. X is less than or equal to 0.

Un objeto tiene una masa de 0.044Lb cuando se sumerge en una probeta que inicialmente contiene 0.350L de agua, el nivel de agua se eleva a 0.485L. ¿Cuál es la densidad (g/mL) del objeto?

Answers

Answer:

147.84 g/L

Step-by-step explanation:

Paso 1

El volumen del objeto se calcula como:

0.485L - 0.350L

= 0.135 litros

Paso 2

Convertimos la masa del objeto de libras a gramos

1 libra = 453.592 gramos

0.044 libras (lb) = x

Cruz multiplicar

x = 0.044 × 453.592 gramos

x = 19.958064 gramos

Paso 3

Densidad del objeto

= Masa (gramos) / Volumen (L)

= 19.958064 gramos / 0.135L

= 147.837511111 g / L

Aproximadamente = 147.84 g / L

Por lo tanto, la densidad (g / mL) del objeto es 147.84 g / L

Find the values of x and y

Can someone help?

Answers

Answer:

y=70

x=55

Step-by-step explanation:

In an equilateral triangle, all the angles measure 60 degrees. Knowing this, we can set the following equations:

[tex]60=y-10\\60=x+5[/tex]

[tex]60=y-10[/tex]

Add 10 to both sides

[tex]60+10=y-10+10\\70=y[/tex]

[tex]60=x+5[/tex]

Subtract both sides by 5

[tex]60-5=x+5-5\\55=x[/tex]

I hope this helps!

Answer:

x is 55° & y is 70°.

Step-by-step explanation:

This is an equilateral triangle.

In an equilateral triangle all sides are 60°

So,

1) x+5 = 60

x = 55°.

2) y-10 = 60

y = 70°.

Answer: x is 55° & y is 70°.

Other Questions
Are there other living things inside your house aside from you and your pets? What do you think are the factors inside your house that enables them to stay alive? plzzzzzzz helppppppp The equilibrium level of real GDP in a country is $480 billion. Suppose that planned investment decreases by $5 billion. This decrease causes real GDP to shift to a new equilibrium level of $470 billion. A. What will be the size of the spending multiplier for this country?B. What is the marginal propensity to save (MPS) for this country? PLEASE PLEASE HELP ME IM STRUGGLING !!! Factor out the monomial expressionf(x)=36x^4-49x^2 Miles bought a new pair of baseball cleats for $64.95. The sales tax is 6.5%. What is the total cost that Miles will pay? A ladder is 12 metres long . It leans against a wall with one end on the ground 7 metres from the wall. The other end just reaches a windowsill. Calculate the height of the windowsill above the ground.i need an explanation please... Expliquer de quel autre texte ou document de l'atelier vous pouvez rapprocher cette nouvelle Can anyone help me? Plsss these two pls :)))) ill mark brainliest :) Anybody who is good with word problems and (who has done these before) plz help thx!!! :DDWILL MARK BRAINLIEST WHOEVER ANSWERS BOTH CORRECLTY :3!!!! Uncle Tom's Cabin is probably one of the best-known works of American fiction. Why was this novel so much more powerful than other sentimental novels? Why has it endured? Charged atoms and molecules must use a ___________________ to cross through the plasma membrane. PLEASE HELP Special Right Triangles and Pythagorean Theorem 1. Find the length of the missing side.Leave your answer in the simplest radical form.please show work Travis reads 21/4 pages of his history assignment in 7 1/2minutes. Which TWO statements are correct?A)The unit rate is 7 pages per minute.B)7The unit rate is10page per minute.0)The unit rate is 51 pages per minute.D)At the same rate, Travis reads 40 pages in 28 minutes.E)At the same rate, Travis reads 60 pages in 28 minutes. In the old British money system, 5shillings was equal in value to 1crown. Emily had 45 shillings. Whatwas the value in crowns? help me w this multiple choice! Hey I need help with this question thanks for people who can help me and have a good day could you include explanation The illustration below depicts conditions leading up to the French Revolution. Use this illustration to answer the following question:A political cartoon depicting three figures. There are two men standing on stairs wearing expensive clothing and standing upright, looking down at a third man. One of the men on the stairs wears a robe and cross. The third man is on the ground level. He wears common clothing and carries a large load on his back. He is being chased by animals. akg-images,Universal Images Group, Image Quest 2013What attitude would French Revolutionaries take toward the priest and nobleman standing up on the steps? (5 points) aThe men should be respected. bThe men should carry more of the burden. cThe men are helpless and should be taken care of. dThe men are divine and should be worshipped. Analyze the given diagram of the carbon cycle below. Use complete sentences to explain your answer.Part 1: Which process does arrow F represent?Part 2: Explain how matter is conserved during the process.Part 3: Justify why this process is a recycling of carbon in the carbon cycle.