60% of the class was present today. If 12 students were present, how many total students are there in the class

Answers

Answer 1

Answer:

20

Step-by-step explanation:

20

Answer 2

Answer:

20

Step-by-step explanation:

Proportions

12 = 60%

E = 100%

E = 12*100/60

E = 20


Related Questions

Can someone help with question B please it's urgent ​

Answers

Answer:

| B | = - 9

Step-by-step explanation:

The determinant of a 2 by 2 matrix B = [tex]\left[\begin{array}{ccc}a&b\\c&d\\\end{array}\right][/tex] is

| B | = ad - bc

Then for

B = [tex]\left[\begin{array}{ccc}0&1\\9&8\\\end{array}\right][/tex]

| B | = (0 × 8 ) - (1 × 9 ) = 0 - 9 = - 9

!!!PLEASE ANSWER QUICK!!!
Student Harrison Anita Juan Krista

Description Harrison shared his video with 7 friends. His friends continued to share it, doubling the number of viewers each day. Anita shared her photo with 41 followers. Each of them shared it with 2 friends, doubling the number of viewers each day. Juan shared his post with 4 friends, who each shared it with 4 more friends. They continued sharing at the same rate. Krista shared her photo with 6 friends, who each shared it with 3 friends. This pattern continued.

Social Media Shares f(x) = 7(2)x

Day

0

1

2

Viewers

41

82

164 Juan shared his post with 4 friends, who each shared it with 4 more friends. They continued sharing at the same rate. f(x) = 6(3)x

State which two students you are studying so your instructor knows for whom each partner is responsible.

Provide an exponential function representing Anita's social media shares.

Provide an exponential function representing Juan's social media shares.

Using the functions for each student, predict how many shares each student's post will have received on Day 3 and then on Day 10. Justify your answers.

Based on your results, which student's post travels the fastest? How is this shown in the equation form of the functions?

If you had to choose, would you prefer a post with fewer friends initially but more shares or more friends initially but fewer shares? Does your partner agree or disagree? Can you think of reasons why more or fewer shares are preferable? Justify your answer with your calculations from previous questions.

Answers

Answer:

Anita: f(x)=42(2)^x. 3. Juan: f(x)=3^x. 4. Harrison: f(x)=5(2)^x = f(3)=5(2)^3=5(8)=40

Step-by-step explanation:

Answer:

Step-by-step explanation:

 

Make sure you are dealing with the same values in your directions.

1. State which two students you are studying so your instructor knows for whom each partner is responsible.  Harrison and Anita

2. Provide an exponential function representing Anita's social media shares.

f(x)= 41(2)^x

3. Provide an exponential function representing Juan's social media shares.

f(x)= 4^x

4. Using the functions for each student, predict how many shares each student's post will have received on Day 3 and then on Day 10. Justify your answers.

Harrison

f(x) =7(2)^x = f(3) = 7(2)^3 = 7(8) = 56

f(x) =7(2)^10 = f(10) = 7(2)^10 = 7(1024) = 7,168

Anita

f(x)= 41(2)^x = f(3) = 41(2)^3 = 41(8) = 328

f(x) =41(2)^10 = f(10) = 41(2)^10 = 41(1024) = 41,984

5. Based on your results, which student's post travels the fastest? How is this shown in the equation form of the functions?

Between students Harrison and Anita the post that travels the fastest was Anita at 41,984 posts.  

f(x) = 41(2)^10  

6. If you had to choose, would you prefer a post with fewer friends initially but more shares or more friends initially but fewer shares? Does your partner agree or disagree? Can you think of reasons why more or fewer shares are preferable? Justify your answer with your calculations from previous questions.

Fewer friends initially but more shares.  If you want a post to go viral you want more shares with more people. The post was viewed 41,984 times in 10 days.

This represents sharing with 2 friends for 3 days.

f(x)= 41(2)^x = f(3) = 41(2)^3 = 41(8) = 328

This represents sharing with 2 friends for 10 days.

f(x) =41(2)^10 = f(10) = 41(2)^10 = 41(1024) = 41,984

Daniel has 54/3 CUPS of ice in the ice maker to use to make smoothies for his friends. He uses 2/3 of ice for each smoothie. How 3 cups many friends can have a smoothie?

Answers

Answer:

27

Step-by-step explanation:

i might be wrong if I'm wrong try 9 as the answer

Answer:

i think 9 i might be wrong

Step-by-step explanation:

CAN SOMEONE PLEASE HELP ME

Answers

Answer:

38 degrees

Step-by-step explanation:

this is an isosceles triangle, meaning that the base angles are congruent.

the total triangle is equal to 180

so the equation would be: x=180 - (71+71)

evaluate:

x=180-142

x=38 degrees

Hope this helps :)

Please help! You will get 'Brainliest' if you do.

Answers

Answer:

10.5

Step-by-step explanation:

just divide 49 by 4 and 2/3 to get the rate of mpg

pls help. i really need help right now

Answers

what? There is no photo

Find the volume of the figure. Use 3.14 for pi

Answers

Answer:

1494.64

Step-by-step explanation:

Divide 28 by 2 = 14

14 times 3.14 times 34

I hope thats right

The diagram below shows the radius of the circular opening of a drinking cup.


Which of the following is closest to the circumference of the opening in centimeters?

Answers

Answer:

25 cm

Step-by-step explanation:

[tex]C=2\pi r[/tex] where r is the radius of the circle

Plug in the given radius (4 cm)

[tex]C=2\pi (4)\\C=8\pi\\C=25[/tex]

Therefore, the circumference of the opening is approximately 25 cm.

I hope this helps!

PLEASE HELP DUE TODAY SOVLE BOTH PLSSS
ANSWER AS SOON AS POSSIBLE (NO FILES NO LINKS)

Answers

Answer:

Step-by-step explanation:

93 percent because 13 of the20 is Doritos

Answer:

a) 60%

b) 65%

Step-by-step explanation:

a) 30 ÷ 50 × 100 = 0.6 × 100

= 60%

b) 13 ÷ 20 × 100 = 0.65 ×100

= 65%

help help help help help plsss
i need serious answer

DON'T WASTE MY PÓINTS~
DO NOT ANSWER IF YOU NOT KNOW~​

Answers

Answer:

solution given:

B.

CE=2×2=4[base side is double to the line of mid point]AB=15/2=7.5[b is a mid point]m<AEC=75°[ corresponding angle]

5.

given:

BD=x+1

CE=x+10

we have

2BD=CE

2(x+1)=x+10

2x+2=x+10

2x-x=10-2

x=8

Solve for the value of x in the following parallelograms.

Helppp, thanksss:)​

Answers

1) combined total of the degrees should be 360. Opposite angles are congruent. So if one angle is 80 so is the one opposite it. 360-160=200
Then divide by two because u need to find x which is one angle. X is 100
2) opposite sides are congruent so you set them equal.
31=2x-5
-5 -5
26=2x
/2 /2
13=x
3) you set them equal because opposite angles are congruent
x+3=4x-27
-x -x
3=3x-27
+27 +27
30=3x
/3 /3
10 = x

Sometimes, Cindy's little brother interrupts her during homework time. So, she made a triangular "Do Not Disturb" sign to hang on her bedroom door. The base of the sign is 1 1 2 feet long, and the sign is 2 2 3 feet tall. Which equation can you use to find the area of the sign, A?

Answers

Answer:

A = 1/2(b×h)

Step-by-step explanation:

Area = 1/2(base×height)

y> - 1/2 x + 3
What is the y-intercept
(x,y)
What is the slope
Will the line be solid or dorted

Answers

Answer:

0,3

Step-by-step explanation:

enter in a graphing calculator see where you hits 0

Answer:

the answer is 0,3

please help me? :\ :/

Answers

No it can’t because a square is not a circle and their is no way for it to become a circle

A car is purchased for $30,000. The value of the car depreciates annually so that it is $24,000 after 1 year, $19,200 after 2 years, and $15,360 after 3 years. Why can this situation be modeled using an exponential function?
The value of the car depreciates annually by 20%.
The value of the car depreciates annually by 80%.
The value of the car depreciates annually by $6,000.
The value of the car depreciates annually by $4,800.

Answers

Answer:

It annually drops by 20%

Step-by-step explanation:

30,000 multiplied by 20% is 6000. Subtract 6000 from 30,000 and you get 24,000. 24,000 multiplied by 20% is 4,800. Subtract 4,800 from 24,000 and you get 19,200. Etc.

What’s the answer? PLEASE ! NO LINKS. thanks !

Answers

Answer:

84 [tex]cm^{2}[/tex]

Step-by-step explanation:

find the area of each shape and add them together

Hellllllllllllllllllllppppppppppppppppppppppppp

Answers

Answer:

According to two brainly answer choices it should be Choice A.

15/6

Step-by-step explanation:

SOURCES:

https://brainly.com/question/16451231

https://brainly.com/question/16811984

THIS IS THE WORK OF ANOTHER BRAINLY USER NOT MINE

In this question, we are to get the total number of hours that Irina used in watching the movie which does not include the term used for airing the commercials.

Now to calculate this, let us first take a look at the shaded segmented bar. We can see that out of the 6 horizontal bars, 5 were shaded. What this means is that 5/6 of the hours went into airing the movie while 1/6 of the hour went into airing commercials

Now, mathematically the number of hours she viewed the movie without the commercials can be calculated by adding all these 5/6 hour in the 3 hours

Mathematically that would be 5/6 + 5/6 + 5/6 = 3 (5/6) or simply 3 * 5/6 = 5/2 = 15/6 hours

PLEASE HELP IVE BEEN TRYING FOR HOURS!! - algebra 1

Answers

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

On parallelogram ABCD, if A(3,-4) B(10,-2) C(8,-9) and D(1,-11), what are the coordinates of E?

Answers

Answer:

(5.5 , - 6.5)

Step-by-step explanation:

Diagonals of a parallelogram bisect each other.

E (x , y) : midpoint of segment AC or segment BD

x = (3 + 8) / 2 = 11/2 = 5.5

y = (-4 + -9) /2 = -13/2 = - 6.5

Answer:

E(5.5,-6.5)

Step-by-step explanation:

We simply draw the parallelogram in coordinate system and read the coordinates of E.

Find the distance.

a. 9.7
b. 11.7
c. 10.7
d. 12.7

Answers

Answer:

b) 11.7

Step-by-step explanation:

(PLEASE HELP)
Which of these lengths CANNOT represent the sides of a triangle?

A.32,34,60
B.13,20,27
C.28,30,58
D.2,4,5

Answers

Answer:

2,4,5 doesn't form a triangle

I need help with this question!

Answers

Answer:

h+c=28

4h+2c=80

Step-by-step explanation:

The total amount of horses and chickens is 28. So h+c=28. Each horse has 4 legs. Each chicken has 2 legs. There are h amount of horses and c amount of chickens. So 4h+2c=80.

h+c=28

4h+2c=80

The sum of three consecutive integers is -27 what is the product of the smallest and largest of the three integers?

Answers

Answer:

80

Step-by-step explanation:

Can someone plz help me

Answers

Answer:

I would say 32 but I'm so sorry if it's wrong

32 I think! But I’m not sure! Have a good day!

Based on the results shown in the table, how many white marbles would one expect to draw in a total of 50 draws? (hint:set up a proportion)​

Answers

The answer to your question is 10

Joshua lives 8 miles directly south of the school. Mark lives 6 miles directly west of the school. What is the shortest distance between Mark's house and Joshua's house?​

Answers

Answer:

10 miles

Step-by-step explanation:

John had a puppy that weighed 12 pounds. Over a year, the puppy gained a significant amount of weight and is now 35 pounds. Use the variable x to represent the amount of weight the puppy gained.

Answers

Answer:x=35-12

Step-by-step explanation:x equals 23

A scientist has collected the following data on the population of a bacteria colony over a thirty-minute period:

5 minutes: 78,000
10 minutes: 234,000
15 minutes: 657,000
20 minutes: 1,784,000
25 minutes: 5,040,000
30 minutes: 14,980,000

Which type of graph would be best to use to display the growth of the colony?
A.) a bar graph
B.) a circle graph
C.) a histogram
D.) a line graph

Answers

I think it’s D sorry if it’s wrong

what is nine of the sum of three succesive odd

Answers

Answer:

3 of per succesive

Step-by-step explanation:

Four students ran for the position of school president. Use the following results to figure out who won. Jenna received 22% of the votes. Jordan received of the votes. Kelsey received 6 out of every 20 votes. Nathan received of the votes. The winner was A Jenna B Jordan C Kelsey D Nathan​

Answers

Answer:

A Jenna

Step-by-step explanation:

Because if Jenna received 22% votes and Jordan, Kelsey, Nathan received less 20 percentage that means Jenna won for school president.

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