There are 12 boys in a class. If the boys make up 4/5 of the entire class, how many students are in the class?

Answers

Answer 1

Answer:

15 students

Step-by-step explanation:

Let x = number of students in the class

students * fraction of boys = boys

x * 4/5 = 12

Multiply each side by 5/4

x * 4/5 (5/4) = 12*5/4

x =15

There are 15 students

Answer 2

Answer:

15 students

Step-by-step explanation:

Step 1: Divide 12 by 4 because if 12 is 4/5, then to find 1/5 you have to divide 4/5 by 4 and 12 by 4

12/4=3

Step 2: Add 12+3 because 4/5+1/5=5/5

12+3=15

There are 15 students in the class, hope this helps!


Related Questions

Multiply mixed numbers 3 1/2 X 2 1/3

Answers

Answer:

8 1/6

Step-by-step explanation:

that is da answer bbbbb

Answer:

8 1/6

Step-by-step explanation:

3 1/2 X 2 1/3

7/2x7/3

Determine the y intercept (b) of the line 4x+2y+24=0

Answers

Answer:

[tex]4x + 2y + 24 = 0 \\ 2y = - 4x - 24 \\ y = - 2x - 12 \\ { \boxed{y - intercept = - 12}}[/tex]

HELP ME NOW OR NO DINO NUUGETS​

Answers

Answer:

what do you want me to help you with cuz there's nothing attached??

Step-by-step explanation:

Could you attach the work? Thank you love!

PLEASE HELPPP MEEEEEEE​

Answers

Answer:

A= -42

B= 3

Step-by-step explanation:

7. 24 ÷ 0 =?
only answers pls





Answers

Answer:

undefined I think. pretty sure my teacher told me that one time. don't count of my answer though

The table shows the population of a small town over time. The fiction p=10,550(1.1) models the time population x year after the year 2000

Answers

Answer:

[tex]7 \times (8 + 9) - 6 \times (2000 + 1700) = 19000.02 [/tex]

That is the answer you are looking

Answer:

the correct answer is b.) 2005

Step-by-step explanation:

edge 2022

A total of 3600 athletes partipated in the Singapore 2010 youth Olympic Games. There were 1200 media representatives who reported on the games, 20,000 volunteers who helped out during the games and 370,000 spectators who attended the games. Find the ratio of The number of media representatives to the number athletes to the number of spectators

Answers

Step-by-step explanation:

answer is in the image above

factorise
[tex] {x}^{6} - 512 {y}^{6} [/tex]

Answers

Answer:

                                                                                                                                                     

Step-by-step explanation:

Can someone help me please

Answers

Step-by-step explanation:

you can follow the same procedure for others

Solve 7x+6<3(x - 2).

Answers

Answer:

x<−3

Step-by-step explanation:

hope this works

which equation has the same solution as x ^ 2 - 10x + 18 = 0

Answers

Answer:

....

Step-by-step explanation:

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

Una tienda ofrece descuentos en todos sus productos en el mismo porcentaje. Camila compró una silla de playa que costaba $26.970, pero pagó $21.576. Si además por un quitasol pagó $15.992. ¿Cuál era el precio original de este?

Answers

Answer:

Step-by-step explanation:

A store offers discounts on all its products at the same percentage. Camila bought a beach chair that cost $ 26,970, but paid $ 21,576. If he also paid $ 15,992 for a sunshade. What was the original price of this one?

Step 1

Find the percentage discount

% discount = Discount amount/ Original amount × 100

= $26,970 - $ 21,576/$26,970 × 100

= 0.2 × 100

= 20%

Please help!!! Answer ASAP and show work!!!

Answers

Answer:

B and C. can you select more than one?

the sum of the ages of a son and his father is 35 years and the product of their ages is
150 .find their present ages​

Answers

Answer:

Step-by-step explanation:

5 and 30 5+30= 35 30×5=150

90 and 55 equals 145 and 90 and 60 equals 150. So there is not exact number and would need to see answers to further better adequately give you an answer since it would be a year and a half of whatever age it would be to equal 150.

bshxhdhbdbdhxhdj sbbxjdh. sbsjzna a nsjxkxiekw s sbsj

Answers

Answer:

Wut-

Step-by-step explanation:

What is this? is this Gibberish?

CAN SOMEONE HELP ME WITH THIS PIEASE AND THANK YOU.

Answers

So the answer is 42 because the maths on the calculator is coorext

Answer:

7 7/8 is my answer

Step-by-step explanation:

All you need to do is turn you mixed numbers into improper fractions 4 1/2 as an improper fraction is 9/2 and 1 3/4 as an improper fraction is 7/4. Then, you would mulitply them which will give you 63/8. After that, you would divide 63 by 8 which is 7 is you is your answer but you also have 7 as a remainder, which is good. That would be your numerator and the other 7 would be your mixed number. The 8 we were just talking about, would stay as your numerator. So, your answer is 7 7/8.  

Hope that helps!!

In the figure GHF=EHD. Which statement it true brother CP CTC?
A) FH=HE
B) DH=HF
C) GH=HD
D) GF=HD

Answers

I DONT KNOW THIS IS SO HARD:(((

Answer: DH and HF correspond.

Your company is considering offering 600 employees the opportunity to transfer to its new headquarters in Ottawa and, as personnel manager, you decide that it would be fairest if the transfer offers are decided by means of a lottery. Assuming that your company currently employs 200 managers, 300 factory workers, and 900 miscellaneous staff, find the following probabilities, leaving the answers as formulas.

(a) All the managers will be offered the opportunity.
C(___,___)
C(___,___)
(b) You will be offered the opportunity.
C(___,___)
C(___,___)

Answers

Answer:

Probability of 100 managers being selected= 100C100*1100C800/1200C900

Probability of selecting just one manager = 1C100*1199C899/1200C900

Explanation:

Given 100 managers, 200 factory workers, 900 miscellaneous workers, and workers bring transferred 900

To find probability of 100 managers leaving given that probability = number of favorable outcomes/total number of outcomes

We use combination since order doesn't matter:

Combination formula= n!/r!(n-r)! Where n= total number of outcomes and r is number of outcome at one time and ! is factorial

Probability of 100 managers using nCr formula for each item = 100C100*1100C800/1200C900

Probability of 1 manager also applying nCr formula as above =1C100*1199C899/1200C900

The probability is the ratio of the favorable event to the total number of events. The probabilities are as follows;

a.  P = ¹⁰⁰C₁₀₀ × ¹¹⁰⁰C₈₀₀ / ¹²⁰⁰C₉₀₀

b.  P = ¹⁰⁰C₁ × ¹¹⁹⁹C₈₉₉ / ¹²⁰⁰C₉₀₀

What is probability?

Probability means possibility. It deals with the occurrence of a random event. The value of probability can only be from 0 to 1. Its basic meaning is something is likely to happen.

Your company is considering offering 600 employees the opportunity to transfer to its new headquarters in Ottawa and, as personnel manager, you decide that it would be fairest if the transfer offers are decided by means of a lottery.

Assuming that your company currently employs 100 managers, 300 factory workers, and 900 miscellaneous staff.

We can use combination since order does not matter;

a)  The probability of all the managers will be offered the opportunity will be

[tex]P = \dfrac{^{100}C_{100} * ^{1100}C_{800}}{^{1200}C_{900}}\\[/tex]

b)  The probability of you will be offered the opportunity will be

[tex]P = \dfrac{^{100}C_{1} * ^{1199}C_{899}}{^{1200}C_{900}}\\[/tex]

More about the probability link is given below.

https://brainly.com/question/795909

select the right answer

Answers

Answer:

73,205 vinyls

Step-by-step explanation:

To calculate the number of vinyls sold we need to calculate the compounded increase. To do this we simply raise the number of times that the initial value increases by the number of difference in years from the start to the current year. Then we multiply this number by the initial number of vinyl records. Since there are 4 years between 2012 and 2016, the formula would be the following...

50,000 * [tex]1.1^{4}[/tex] = x

50,000 * 1.4641 = x

73,205 = x

Finally, we can see that there will be a total of 73,205 vinyls in 2016

PLEASE HELP ASAP PLLSSS!!!!
Patrick wants to buy a new computer. He already has $275 saved and plans to save $125 each month. The price of the computer is currently $1,850, but Patrick expects the price to drop by $100 each month. Patrick wants to determine the number of months he will need to save.

a) If x represents the number of months, then write an equation to represent A, the total amount Patrick saves.


b)If x represents the number of months, then write an equation to represent C, the cost of the computer.


c)Use your equations from part “a” and part “b” to determine how many months he will need to save before he can buy the computer. Show your work or explain how you got your answer.



Answers

Answer:

7 months

Step-by-step explanation:

a)

A(x) = 275 + 125x

b)

C(x) = 1850 - 100x

c)

275 + 125x = 1850 - 100x125x + 100x = 1850 - 275225x = 1575x = 1575 / 225x = 7

The answer is 7 months

p(x) = 4x^2 - 15x - 25

Answers

The answear is P(x)=4x

the answer is (4x + 5) (x - 5)

PLEASE HELP!!!!

Given right triangle ABC with altitude BD drawn to hypotenuse AC. If AB=20 and AD=10, what is the length of AC?

Answers

Answer:

mAC = 40

Step-by-step explanation:

Use similar triangles,

BAC and DAB are similar

therefore

CA/AB = BA/AD

CA/20 = 20/10

cross multiply

AC = CA = 20*20/10 = 40

Or use metric relations

CA*AD = BA^2

CA = BA^2/AD = 20^2/10 = 40

Does anyone know the Answer for this

Answers

y= -6, hope this helps

Answer:

The value of y when x = 8 is -8.

Step-by-step explanation:

y = 8 - 2x

y = 8 - 2*8

y = 8 - 16

y = -8

Have a nice day!

If you complete 5 worksheets every day, how long will it take you to complete 101 worksheets?

Answers

The correct answer would be about 20 days and you will fish the work sheets

Answer:

21 days

Step-by-step explanation:

101/5=20.2

thus u need 21 days to finish 101 worksheets

Which of the following is equivalent to 5sqrt 13^3

Answers

Answer: D) 13^(3/5)

Step-by-step explanation: This is assuming that the question is asking the √13^3. With the five as the y root.

The first few steps in solving the quadratic equation 8x2 + 80x = −5 by completing the square are shown.

8x2 + 80x = −5

8(x2 + 10x) = −5

8(x2 + 10x + 25) = −5 + ______

Which number is missing in the last step?

−200
−25
25
200

Answers

Answer:

d; 200

Step-by-step explanation:

took the quiz

25 is missing in the last step.

Option C is the correct answer.

What is an equation?

An equation contains one or more terms with variables connected by an equal sign.

Example:

2x + 4y = 9 is an equation.

2x = 8 is an equation.

We have,

To complete the square, we add and subtract the square of half of the coefficient of x, i.e., (10/2)² = 25, inside the parentheses:

8(x²+ 10x + 25 - 25) = -5

Simplifying the expression inside the parentheses.

8(x + 5)² = 200

Dividing both sides by 8.

(x + 5)² = 25

Taking the square root of both sides.

x + 5 = ±5

Solving for x.

x = -10 or x = 0

Thus,

The missing number is 25.

Learn more about equations here:

https://brainly.com/question/17194269

#SPJ5

If you can please help me with this question~ the question is the image :)

Answers

Answer:

B

Step-by-step explanation:

Start by using the distance formula to find the raidus

The two points are (-2,1) and (-4,1)

√((-4+2)²+(1-1)²)= 2

The radius is two and we have our center which means we can write

(x+2)²+(y-1)²=4

now it's just a matter of expanding everyhting

x²+4x+4+y²-2y-3=0

x²+y²+4x-2y+1=0

This is equal to B

Can someone help me with this question please

Answers

Answer:

it's jsjehejejsjdjehhehedjbxvjjvjxjxjxidgidiftytfhfyf

Mark started walking to school at half past 9. christy arrived at school 15 minutes later .What time did she get to school​

Answers

Answer:

Mark arrived at school at 9:45 A.M. or either 9:45 P.M.

Answer:

Christy got to school at 9:45am

Step-by-step explanation:

What is the volume of a cylinder with a base radius of 10 units and a height of 9 units?

Answers

Answer:

565.7 cubic units

Step-by-step explanation:

Volume of cylinder=2πrh

                               =2x(22/7)(10)(9)

                               =180x(22/7)

                               =565.7

565.7 - units of the cylinder Base
Other Questions
no sei pq esse povo velho fica aoagando a resposta da pessoa a pessoa tem i mo trabalho ora reaponde e o que adianta () El opuesto y el semejante de 8xy 30 points The question is below, answer ASAP please 4. What are ways to get rid of a sore throat After severe dust storms in the 1930s, practices were put in place to reduce soil erosion. Whichpractice best helped to reduce soil erosion? 3. Karen opens a credit account to purchase a new bed. She makes a down payment of S200 on a $1.000 becWhat is her financial situation? Jill went to Harry's Hair Salon to get a permanent wave; the lotion Harry applied to Jill's hair burned her scalp. The test to determine whether the common law or Article 2 applies here is the ____________ test. What does it mean to be Spanish (espaol) The midpoint of a line segment from P1 to P2 is (-5,2). If P1 = (-1,7), what is P2? Calculate the number of side of a regular polygon whose interiors angle are each 156 degree a. We will attempt to answer the question "What is the average height of RCCC male students?" using data we collected the first week of this semester. Be sure to give explanations in context and include units when appropriate.Describe the population of interest? A sample of____(state the number) RCCC male students was taken. We found the sample mean____(symbol) to be Interpretation: In the sample of male RCCC students, the____"mean") height was approximately____inches. The median is____Interpretation (use the one for mean as a guide): The mode is____Interpretation (use the one for mean as a guide): b. We know the measures of central tendency don't tell us the whole story, so we then investigated the measures of variation as well. We found that the heights had a range of_____with a standard deviation____(symbol) of_____(2 decimal places) and a variance_____(symbol) of (2 decimal places). Height (inches) Note: There are 31 male heights. 1 70 2 70 3 704 70 5 71 6 647 648 659 6510 6611 66 12 67 13 6714 6815 6816 6817 6918 7219 7220 7221 7222 7323 73 24 7325 7326 7327 7328 7429 7530 7531 7532 75 70 70 70 70 71 64 64 65 65 66 66 67 67 68 68 68 69 72 72 72 72 73 73 73 73 73 73 74 75 75 75 22 What is a criminal act? What is a criminal state of mind? When are individuals criminally liable for their actions? who is the first prime minister of nepal What is development? help, with this question please. im not sure if anyones asked it yet. How do employees differ from employers when it comes to labour hours? Find the solution(s) for x in the equation below.x^2 - 25 = 0A. x = -5. no solutionsC. x = 5D. x = 5; x = -5 share 747 in the ratio 2:7 between Tom and Ben The earliest known form of African art isA. metalworkingB. rock paintingC. weavingD. woodcarving can someone pls help me with this one !