Sally is teaching a nursery rhyme to her kindergarten students. She found that 4 out of every 10 students know the rhyme. If Sally has a total of 20 students, how many students in her class know the rhyme?

Answers

Answer 1

Step-by-step explanation:

the answer is

[tex]= \frac{4}{10} \times 20 = 8[/tex]


Related Questions

The perimeter of an equilateral triangle is 114mm.
State the length of one of its sides

Answers

Answer:

Since an equilateral triangle has all three side equal then one of its side is 38mm

The length of one of the sides of the triangle is 38 mm.

What is Perimeter?

The perimeter of a form is the space surrounding its edge. Find the perimeter of various forms by summing the lengths of their sides.

Given that all of the sides of an equilateral triangle are equal in length, we may calculate the length of a side by dividing the perimeter by the triangle's total number of sides, which is 3.

As a result, the equilateral triangle's one side has the following length:

114 mm / 3 = 38 mm

Therefore, the equilateral triangle's sides are each 38 mm long.

Learn more about perimeter here:

https://brainly.com/question/6465134

#SPJ2

What is the factors for x squared plus 5x - 6

Answers

Answer:

=[tex](x-1)(x+6)[/tex]

Step-by-step explanation:

Answer:

[tex]x^{2} +5x-6=(x-1)(x+6)[/tex]

Step-by-step explanation:

cual es el interes que produce un capital de 230,000 en 12 años a una tasa de interés compuesta anual del 5.5%​

Answers

Answer:

$121,052.63

Step-by-step explanation:

Tomando en cuenta la fórmula " (1+i)^(n) ". Sustituyes los valores quedando así

(1 + 0.055)^12 y te da como resultado 1.90

Por último divides $230,000 entre 1.90 y ahí tienes el resultado final.

360,000 = X% of 4000000

Answers

Answer:9%

360,000 / 4000000=.09

.09x100= 9%

Answer:

09

Step-by-step explanation:

Please help with this question ASAP

Answers

scan it with photo math it helps

Answer:

B.  28/15

Step-by-step explanation:

7/3 x 4/5 = 28/15

Jane bought a new car for $30,000. A function that models the value of Jane’s car after t years is v(t)= 5(30,000) (0.85)t . In how many years will the car be worth less than half of what Jane paid for it?

a 2
b 3
c 4
d 5

Answers

Answer:

c

Step-by-step explanation:

Answer: C.) 4

-plug 4 in for t

-solve the equation

For each sequence, state if it is arithmetic, geometric, or neither.
0, 3, 8, 15, 24

Answers

Answer:

Step-by-step explanation:

0, 3, 8, 15, 24, . . .

it is arithmetic

A company that advertises on websites uses the formula below to estimate the number of people who will click on one of its advertisements, where c is the number of clicks on that advertisement, t is the length of time the advertisement is displayed (in days), and d is the distance from the top of the website to the advertisement (in inches).

c = 152t - 44d

How many clicks would the company estimate to receive from its advertisement that is displayed 7 inches from the top of the website for 18 days? A. 272 B. 2,692 C. 2,428 D. 2,729

Answers

Answer:

C. 2428

Step-by-step explanation:

c=152t-44d

Its given that,

t=18, d=7

substituting

c=152(18)-44(7)=2428

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what is the value of z in the equation 4 x 2- z=7?

Answers

Z=1

Hope this helped! :)

Answer:

Z = 1

Step-by-step explanation:

Simplify the equation using PEMDAS.

4 x 2 - z = 7

8 - x = 7

- x = 7 - 8

-x = - 1

x = 1

Did I use the right properties to justify each step? 100 points!!

Answers

Yes, I’m pretty sure you’re correct

Let me know if it is.

Answer:

You are right I am pretty sure

Theres the picture! Thank you.

Answers

Answer:

B. x = 8√3 ≈ 13.86; y = 8

Step-by-step explanation:

✔️Find x using trigonometric ratio:

Reference angle = 60°

opposite = x

Hypotenuse = 16

Thus:

Sin(60) = x/16

16*sin(60) = x

16*√3/2 = x

8√2 = x

x = 8√3 ≈ 13.86

✔️Find y using Pythagorean Theorem:

y² = 16² - (8√3)²

y² = 256 - 192 = 64

y = √64

y = 8

of the last 14 contestants on a game show, 7 qualified for the bonus round. Considering this data,
how many of the next 12 contestants would you expect to qualify for the bonus round?
contestants

Answers

The correct answer would be 6

Pls help me out plss

Answers

Answer:

1.5 white and 2 blue is an equivalent ratio

Step-by-step explanation:

cuales son las fuentes primarias​

Answers

Answer:

Testigos de primera mano

Answer:

Algunos tipos de fuentes primarias son:

*Documentos originales

*Diarios

*Novelas

*Instrumentos musicales

*Minutas

*Entrevistas

*Poesia

*Apuntes de investigacion

*Noticias

*Fotografias

*Autobiografias

*Cartas

*Discursos

ESPERO QUE TE HAYA SIDO DE AYUDA.

Hi Brainly users! I have an 8th-grade math problem for you! Please see the screenshot! :)

Answers

Answer:

A) [tex]32\pi[/tex]

Step-by-step explanation:

First, solve the volume of the cylinder. It's about [tex]87.96[/tex]

Next, find the volume of the cone. It's about [tex]12.57[/tex]

Thus, the total volume is  [tex]87.96[/tex] [tex]+[/tex] [tex]12.57[/tex], which is about [tex]100.53[/tex]

[tex]100.53[/tex] in terms of [tex]\pi[/tex] is A) [tex]32\pi[/tex]

Hope I helped!

At the store brand a potato chips or $11.90 for four bags

Answers

Answer:

what is the question?

Step-by-step explanation:

i need the question to answer

Can someone explain this to me? I really need help. Thx!

Answers

Answer:

3 to the 4th power.

Step-by-step explanation:

Basically, here 3 to the 3rd power is 27. Multiplying it by 3 is only adding another power, making it 81, which is the same answer to 3 to the 4th power if that makes sense.

A server at a restaurant works 5 hours on a weekday and 8 hours on a weekend day. Use the expression to find the number of hours the server works on 4 weekdays and 2 weekend days.

Answers

Answer:

20 weekday hours and 16 weekend hours

Step-by-step explanation:

all u do is take 5 hours and multiple them by 4 weekdays so it gives u 20 hours and then u multiple 8 hours by 2 which is 16 hours

Write the ratios for sin X, cos X, and tan X. Use the / for a fraction.​

Answers

Answer:

Step-by-step explanation:

From the right triangle attached in the picture,

sine ratio for the angle X,

[tex]\text{sinX}=\frac{\text{Opposite side}}{\text{Hypotenuse}}[/tex]

       [tex]=\frac{YZ}{XZ}[/tex]

       [tex]=\frac{21}{29}[/tex]

cosine ratio for the angle X,

[tex]\text{cosX}=\frac{\text{Adjacent side}}{\text{Hypotenuse}}[/tex]

        [tex]=\frac{XY}{XZ}[/tex]

        [tex]=\frac{20}{29}[/tex]

tang ratio for the angle X,

[tex]\text{tanX}=\frac{\text{Opposite side}}{\text{Adjacent side}}[/tex]

        [tex]=\frac{21}{20}[/tex]

Without graphing, describe the end behavior of the graph of the function.
f(x) = 1 - 2x2-x

Answers

Answer:

A

Step-by-step explanation:

When doing function behaviors it would be really helpful if you memorized the picture i've attached below

We can see that we have a negative leading coefficent  and an odd degree which means that as x approaches -∞ it's positive and as x approaches ∞ it's negative

This means that the answer is A

f(n)=n-2
g(n)=4n-1
f{g(n)}=?

Answers

9514 1404 393

Answer:

  f(g(n)) = 4n-3

Step-by-step explanation:

f(g(n)) = f(4n -1) = (4n -1) -2

f(g(n)) = 4n -3

Which expression is equivalent to (2x + 6) - (3x + 4)
A. -1x + (10)
B. 5x + (10)
C. -1x + (2)
D.5x + (-2)

Answers

Answer:

C. -1x + (2)

Step-by-step explanation:

(2x + 6) - (3x + 4)

= 2x + 6 -3x - 4

= 2x - 3x + 6 - 4

= -1x +2

Answer:

C

Step-by-step explanation:

Expand the brackets = 2x + 6 - 3x - 4

Take 3x from 2x to get -1x

The equation is now -1x + 6 - 4

Take 4 from 6 to get 2

The equation is now -1x + 2, which is equal to option C

What is the probability of flipping 4 coins and having exactly three of them land on tails?
A) 1/16
B) 2/16
C) 3/16
D) 4/16

Answers

3/4 coins are heads:
THHH
HTHH
HHTH
HHHT

4 chances

2 options of heads/tails with 4 coins

2*2*2*2= 16

4/16 :)

7. Washcloths were selling for $1.88 each. If 14 1/4 dozen cloths were sold, what was the retail value of the total sales

Answers

Answer:

The retail value of the total sales was $311.48

Step-by-step explanation:

14 1/4 dozen cloths were sold

This means that the total number of cloths sold was:

[tex]14*12 + 12*\frac{1}{4} = 168 + 3 = 171[/tex]

Each for $1.88

So the retail value of total sales was.

$1.88*171 = $311.48

The retail value of the total sales was $311.48

Fred went to an arcade to play video games. He paid $2 for every 11 tokens he bought. He spent a total of $16 on tokens. Which equation can be used to determine t, the number of tokens Fred bought?

Answers

Answer:

D

Step-by-step explanation:

Since there are two types of values here: tokens and dollars, we will need to use the same value across numerators and denominators in the ratio.

Choice D has 11 tokens over $2 equals to t tokens over $16. In both fractions the numerator is tokens and denominator is dollars.

Two functions are defined by these equations: f(x) = 5.1 + 0.8x g(x) = 3.4 + 1.2x Which function has a greater value when x is 3.9? How much greater?

Answers

Step-by-step explanation:

Two functions are defined by these equations:

f(x) = 5.1 + 0.8x

g(x) = 3.4 + 1.2x

Put x = 3.9 in both f(x) and g(x).

f(x) = 5.1 + 0.8(3.9)

= 8.22

g(x) = 3.4 + 1.2(3.9)

= 8.08

So, f(x) is greater than g(x).

f(x)-g(x) = 8.22 - 8.08

= 0.14

So, f(x) is 0.14 units more than g(x).

The Browns scored 13 more points than the Saints. The total of

their scores was 47. How many points did each team score?

Answers

Answer:

Saints team scores points = 17

Browns team scores point = 30

Step-by-step explanation:

Let Saints team scores points = x

      Browns team scores point = y

As given,

The Browns scored 13 more points than the Saints.

⇒ y = x + 13

Now, given

The total of  their scores was 47.

⇒ x + y = 47

⇒x + x + 13 = 47

⇒ 2x = 47 - 13

⇒2x = 34

⇒x= [tex]\frac{34}{2}[/tex] = 17

∴ we get

Saints team scores points = x = 17

Browns team scores point = y = x + 13 = 17 + 13 = 30

Answer:

30 , 17

Step-by-step explanation:

browns  have x + 13

saints have y

x+13 + x+y = 47

2x = 34

x=17

17 + y = 47

y=30

please help meeeeeeeeeeeeeeeeeeee

Answers

Answer:

It took more than 3 hours

Step-by-step explanation:

Because 4/4 is 3 hours if it is higher then that is is more than 3 hours.

For the following exercise, determine the range (possible values) of the random variable, X. A batch of 300 machined parts contains 10 that do not conform to customer requirements. The random variable is the number of parts in a sample of 5 parts that do not conform to customer requirements. Choose the correct answer.

a. The range of X is {0,1,2,3,4,5,6}
b. The range of X is {0,1,2,3,4,5,6}
c. The range of X is {0,1,2,3,4,5,6}
d. The range of X is {0,1,2,3,4,5,6}
e. The range of X is {0,1,2,3,4,5,6}

Answers

Answer:

{0,1,2,3,4,5}

Step-by-step explanation:

We are given that

Total number of  machine parts=300

Number of defective machine parts=10

Total number of good machine parts=300-10=290

Sample contain parts that do not conform to customer requirement=5

X  is a random variable which is the number of parts in a sample of 5 parts that do not conform to customer requirements.

We have to find the correct answer.

The sample contain 5 parts

Therefore, the possible values of random variable X

0,1,2,3,4,5

Hence, the range of X is given by

{0,1,2,3,4,5}

Please help I have been stuck this for a while

Answers

Answer:

Option (D)

Step-by-step explanation:

Given expression is,

x³ × 3 ÷ [tex]\frac{2}{9}[/tex] + 9x - (7 - 6x)

By substituting x = [tex]\frac{2}{3}[/tex],

[tex](\frac{2}{3})^3\times 3 \div \frac{2}{9}+9(\frac{2}{3})-[7-6(\frac{2}{3})][/tex]

By using rule PEMDAS,

P - Parenthesis

E - Exponent

M - Multiplication

D - Division

A - Addition

S - Subtraction

[tex]=(\frac{2}{3})^3\times 3 \div \frac{2}{9}+9(\frac{2}{3})-[7-4][/tex]

= [tex](\frac{2}{3})^3\times 3 \div \frac{2}{9}+9(\frac{2}{3})-3[/tex]

= [tex]\frac{8}{27}\times 3 \div \frac{2}{9}+6-3[/tex]

= [tex]\frac{8}{9}\div \frac{2}{9}+6-3[/tex]

= [tex]\frac{8}{9}\times \frac{9}{2}+6-3[/tex]

= 4 + 6 - 3

= 7

Option (D) is the answer.

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