There are 18 girls in a class.
If this is 40% of the class list, how many students are in the class?

Answers

Answer 1

Answer:

45 students

Step-by-step explanation:

40+40=80   40/2=20   80+20=100

18+18=36      18/2=9       36+9=45

horrible explaining but hope it helps :)

Answer 2

Answer:

45

Step-by-step explanation:

18 ÷ 45 = 0.4 = 40%


Related Questions

Jack is x years old.
Eric is three times Jack's age.
Mary is 50 years old.
She is 2 years older than Eric.
How old is Jack?
(2 marks)

Answers

Answer:

Jack is 16

48 divided by 3= 16

Eric is 48

50-2=48

Jack is 16 years old
The first step is to find the age of Eric, who is 2 years younger than Mary. Mary is 50 years old, so 50-2=48. Since Eric is three times Jacks age, we have to divide 48 by 3 to find his age. This comes to 16.

(50-2)/3=x

-7 - 12 = - 7х + 3(-4 - x)

Answers

Answer: x = -1.8

Step-by-step explanation:

-7 - 12 = -7x + 3 (-4 - x)

-7x + 3 (-4 - x) = -7 - 12

P.S I switched the order cuz I find it easier to solve this way.

-7x + 3 (-4 - x) = -7 - 12

Distribute

-7x - 12 - 3x = - 7 + 13

Add 12 to both sides

-7x - 3x = -7 + 13 + 12

Combine like terms

-10x = 18

Divide both sides by -10

x = -1.8

Name the property. (6x4) x3 = 6x(4x3)​

Answers

Answer:

Associative

Step-by-step explanation:

When three or more numbers are multiplied, the product is the same regardless of  the way in which the numbers are grouped.

Simplify (6^2)(3^3)(3*6)^4

Answers

Answer:

102036672.............

Help me ASAP I’ll mark you as a BL Question attached below

Answers

Answer:

I think it might be A if not then its be

Step-by-step explanation:

sorry if its not right


Perhatikan gambar berikut!
a.Buktikan bahwa AABC dan AEDF
kongruen (sama dan sebangun)!
b. Tentukan pasangan sudut yang sama
besar!​

Answers

Answer:

a is the correct answer mh

what is the midpoint of -7 and 4

Answers

i think it’s -1.5?? i’m not sure

Read this excerpt from Immigrant Kids, by Russell Freedman.

Edward Corsi, who later became United States Commissioner of Immigration, was a ten-year-old Italian immigrant when he sailed into New York harbor in 1907:

My first impressions of the New World will always remain etched in my memory, particularly that hazy October morning when I first saw Ellis Island. The steamer Florida, fourteen days out of Naples, filled to capacity with 1600 natives of Italy, had weathered one of the worst storms in our captain's memory; and glad we were, both children and grown-ups, to leave the open sea and come at last through the Narrows into the Bay.

My mother, my stepfather, my brother Giuseppe, and my two sisters, Liberta and Helvetia, all of us together, happy that we had come through the storm safely, clustered on the foredeck for fear of separation and looked with wonder on this miraculous land of our dreams.

The purpose of this excerpt is to help readers understand

A) the excitement and relief immigrants felt upon arriving in America.
B) that the Narrows into the Bay was a very dangerous passage.
C) that Italian children were very sad after leaving their home country.
D) the weather the immigrants experienced on that day in October 1907.

Answers

Answer:

the answer is A

Step-by-step explanation:

Answer:

The correct option is a), that is, the excitement and relief immigrants felt upon arriving in America.

Exp lanation:

The excerpt represents the horrifying situation that immigrants were facing while sailing to America. The experience of heavy storm made their families worried about their future and separation.

Therefore, after reaching the land, they were happy to be safe together on their dream land.

Divide 2x^4+3x^3-5x+6 by x^2+3x-2 .

Answers

2x^4 + 3x^3 - 5x + 6  ÷ x^2 + 3x - 2

= 2x^6 + 3x^5 − 2x^3 − 2x^2 + 6/ x^2

Can the triangles be proven similar and how

Answers

Answer:

yes

Step-by-step explanation:

5x2 + 34x – 7 = 0
solve by factoring

Answers

Answer:

[tex]x=\frac{1}{5} , -7[/tex]

Step-by-step explanation:

Hope this helps!

A box of cereal states that there are 72 calories in a 3 fourth cup serving what is the unit rate for calories per cup? HHow many calories are there in 4 cups? The unit rate is _ calories per cup

Answers

Answer:

4 cups = 384 calories ; 1 cup = 96 calories

Step-by-step explanation:

Given that:

3/4 cups = 72 calories

Let Number of calories in 4 cups = x

3/4 = 72

4 = x

Cross multiply

(3/4)x = 72 * 4

(3/4)x = 288

Multiply both sides by 4/3

(3/4 * 4/3)x = 288 * 4/3

x = (288 * 4) /3

x = 384

Hence, 4 cups has 384 calories

Number of calories per cup :

4 cups = 384 calories

1 cup = 384 / 4

1 cup = 96 calories

HELP? I am confused lol

Answers

Answer:

120*10.8= your answer :)

Step-by-step explanation:

If 1 square meter is 10.8 square ft, then 120 square meters should be 120*10.8 square feet.

Answer is 1,296

Explanation: 10.8 square feet is one square meter. So if you multiple 120 which is the about of carpeting there is in the apartment in square meters. By 10.8 it will equals 1,296 square feet

if the original quantity is 14 in the new quantity is 24 estimate the percent change

Answers

Answer:

[tex]\% \: change = \frac{(24 - 14)}{14} \times 100 \\ = \frac{10 \times 100}{14} \\ = \frac{1000}{14} \\ = 71.43\%[/tex]

Percentage change is 71.43%.

fifteen more than twice a number is -23

Answers

Answer:

15+2x=-23

Step-by-step explanation:

Answer:

15+2x=-23  

Step-by-step explanation:

Gray read his book on 3 different weeks. On week 1 gray read 234 pages of the book. On week 2 gray readthe same number of pages on week 1. On week 3, he read 100 pages less than he read on week 2. What was the total number of pagesless than he read on week 2

Answers

Answer:

602 pages

Step-by-step explanation:

Given that he read his book on 3 different weeks in the manner;

week 1 - 234 pages

week 2 - 234 pages

week 3 - 100 pages less than he read on week 2

This means that the number of pages read on week 3

= 234 - 100

= 134 pages

Hence the total number pages in the book

= 234 + 234 + 134

= 602 pages

Answer:602

Step-by-step explanation:

110 cm
50 cm
140cm
90 cm
-110 cm -
70 cm

Answers

Answer:

probably is 140 or is it just the whole question?

3 and 3/4 + 1 and 1/4

Explanations on how I can get my answer please?

Answers

Answer:

The answer for this question is 5

x + 3 = 11 A. x = 11 B. x = 23 C. x = 14 D. x = 8

Answers

Answer:

8 (D)

Step-by-step explanation:

11 - 3 = x

11-3 = 8

hope this helps

Answer:

A) 0.78

B) 2.36

C) 1.54

D) 1

Step-by-step explanation:

I  just plugged in the numbers for x so like for A I did (11)+3=11

11+3=14

14/11=0.78 i hope i did that right

1. Solve for x.

4x + 12 = 60

2. Solve for x.

2x + 5 = 21


3. Solve for x.

4x - 7 = 5





4. Solve for x.

3b - 4 = 11






5. Solve for x.

x3 = 33

6. Solve for x.

⅓ x + 6 = -8

7. Landon has 42 candies. He shares them with his friend Fred in a ratio of 3:5. How many candies does each person get?






8. Simplify the expression.

3x - 2 + 7 - 7x + 9

9. Simplify the expression.

⅓ (x - 3) + 12x


10. Jonah put in 12 colored tiles in a jar. There are 3 red tiles, 7 blue tiles, and 2 yellow tiles. What is the probability that he will select a red tile first, then select a blue tile next without replacing the first tile?






11. Tia is painting her house. She paints 34 ½ square feet in ¾ of an hour. At this rate, how many square feet can she paint each hour?

12. Sam raked 3 bags of leaves in 16 minutes. If he continues to work at the same rate, about how long will it take him to rake 5 bags?

Answers

This is the answer for the first one
Hello there!
1.)x=12 2.)x=8 3.)x=3 4.)x/b=5 5.)x=11 6.)x=-4 7.) about 25 8.)-4x+15 9.) 37/3 x +1 10.)63.74% chance 11.) 45 square feet 12.)26.66665

Hope this helps

Have a great day/night

pls help out, what is the slope?

Answers

Answer:

Slope is 1 unit

I think so as the line is accurately tangential to the circumcircle by diagonal of a unit graph and hence diameter coincides with diagonal.

Does table represent a linear or nonlinear function?

Answers

Answer:

this table is linear

Step-by-step explanation:

it's linear because there is a common difference of  -4

Caden biked 1 2/5 miles in 1/4 hour. If it is currently 4:00 P.M. and he has to bike 14 miles. At what time will he be finished?​

Answers

Answer:

He will finish the biking at 6:30 pm

Step-by-step explanation:

1/4 hour is same as 1/4 * 60 = 15 minutes

1 2/5 miles is same as 1.4 miles

He bikes 1.4 miles in 15 minutes

then he will bike 14 miles in 15 * 10 = 150 minutes

150

minutes is same as 2 hours 30 minutes

Adding this to 4 pm, we will get;

6:30 pm

A deli owner sold 90 sandwiches in one day. Of those sandwiches, 36 were pastrami. Write an equation to show what percent of sandwiches sold were pastrami

Answers

Answer:

36/90 * 100 = p

(p is percent sold that were pastrami)

Step-by-step explanation:

First, 36/90 (part over whole), simplifies to 40/100. We can multiply that by 100 to get a percentage. And that is your equation.

name a combination with 24 nickels and dimes that make up 2 dollars

Answers

24 nickels

2 quarters

3 dimes
24 nickles
2 quarters
3 dimes

Could someone’s please solve this for me?

Answers

Answer:

A

Step-by-step explanation:

Because 25 divide 25 equals 1

And then you divide 75 by 25 and that will get you 3

Hope that helps :)

Answer:

[tex] \frac{25}{75} = \frac{1}{k} \\ \frac{1}{3} = \frac{1}{k} \\ \boxed{k = 3}[/tex]

A. 3 is the right answer.

о G Kelly opened a bank account that earns 1.2% simple interest each year. After 7 years, Kelly will earn $126 in interest. How much did Kelly deposit when she opened the account?​

Answers

Answer:

$1,512

Step-by-step explanation:

1.2% of $126 = $1,512

I really dont l know if this is right but I think it is

Answer:

$15

Step-by-step explanation:

Interest=principle X interest rate X the time(In this case years)

So, $126= p X 1.2% X 7

We first multiply 1.2% by 7 and get .084, then we move the decimal to places to the right and get 8.4.After that we divide $126 by 8.4 and you should get 15.So thats how I got $15 but then again I may be wrong.Hope this works for you =)

Write2.1 as a mixed number and as an improper fraction.
Do not try to simplify your answers.

Answers

Answer:

2 1/10 and 21/10

Step-by-step explanation:

2.1 is 2 + 0.1 when expanded.

2 is just 2 and then 0.1 as a fraction is 1/10. The mixed number would be                 2 1/10.

The improper fraction  is just 21/10 (convert the mixed number into improper form).

Converting from mixed number to improper: Multiply the number in the front (in this case 2) by the denominator.

That is 2 x 10 which is 20. Then add that number (20) to the numerator. 20 + 1 is equal to 21.

21 would be our numerator and the denominator would stay the same (10).

21/10 is the improper form.

f (x) = -x2 + 8x - 11
h(x) = -x-7
find f (9) + (-14)

Answers

is there a answer choice of -5

Write 1/2 as a percent

Answers

1/2 as a percent is 0.5

Answer:

50%

one half is equivilent to 50%

Other Questions
I WILL GIVE BRAINLIEST!!!Sharks' TeethBy Langston CarterThe day we found the sharks' teeth was foggy and cool. Moisture hung in the air so thick you could almost see it sparkling in the dim sunlight. There were days, early in the summer like this one, where it seemed there was more water in the air than in the bay. We had beached the boat and stepped out on the recently cleared spit of land. The ground had a light dusting of white sand over an under layer of dried black mud. It looked like a recently frosted chocolate cake, though the frosting was spread a bit thin for my taste. The ground was solid, but we knew from experience that it was full of fiddler crab holes, and would be underwater at the first super-high tide. Mysteriously, to us anyway, someone wanted to build a house there.We often came to these spots to look for artifacts. Our beach, our summer home, had been a fishing camp for as long as anyone living could remember. The oldest stories told of travelers coming down to the edge of the sea, lining up to fill their wagon beds with salted fish to take back home. Old decaying cabins still lined the beach. Rotting nets, hung out to dry in the last century, decorated their weathered walls. Their broken faces spun stories in our minds. The fishermen who, tanned and wrinkled from sun and salt, hauled their nets full of splashing mullet in to cheers from the waiting crowds. The bounty of the sea lightened everyone's hearts, and the smell of roasting fish filled the damp air. Women fanned themselves from wagon seats. Children splashed in the shallow edges of the bay. It was a scene we had acted out as youngsters, building an imaginary bridge to a life we would never fully know.What line from the text introduces an element of the plot?A. Moisture hung in the air so thick you could almost see it sparkling in the dim sunlightB. We often came to these spots to look for artifacts.C. Our beach, our summer home, had been a fishing camp for as long as anyone living could rememberD. The bounty of the sea lightened everyone's hearts what king was most powerful in the empire A. 4x(-1)=B. 4x(-2)=C. 4x(-3)=Explain please In ARST, mZR = (6x + 10), mZS = (2x + 5), andm_T = (3x 11)'. Find m R.Answer:Submit Answer Natasha was learning about physical features that serve as natural boundaries between continents. One of the boundaries that she read about was a low-rising mountain range that was rich in natural resources. What is the name of this physical boundary? when 832 is divided by n, the result is 16 estimate 5/11 + 5/16 . use the benchmarks 0,1/2 and 1a. 1/2b. 1 1/2c. 2d. 1pls help Using the Gizmo, find a carbon atom path from the atmosphere to the cement plant. (Hint:One of the ingredients in cement is limestone.)Path: HURRY!!!!!!!!! THIS QUESTION IS 50PTS.Option 1: $10.00 every dayOption 2: $3.00 on the first day, $3.50 on the second, $4.00 on the third, and so on, increasing by $0.50 per dayOption 3: $0.01 on the first day, $0.02 on the second, $0.04 on the third, and so on, doubling each day.For option 1,2 and 3 Write a formula to find how much you would make on any day. The American Revolution led to the liberation of the colonies from British rule. How much do you know about the revolution? Make two lists:important people associated with the revolutionimportant events of the warplz i need help on this Help!!!!!!!!!!!!!!!!!!!! Summary of any articles What is the domain of f(x) = 5^x - 7?A.) {x| x > -7}B.) {x| x < -7}C.) {x| x > 0}D.) {x| x is a real number} which molecules from food and air end up in the cells in the body? choose all the apply- NEED URGENT 10 points! Compare using >,=, or I need halp with this-Z=9 the slope of a line is -4/5 what is the rise if the run is 20? Describe geologic processes. How have they changed the surface of the earth ? (give examples) Here is a list of numbers: -11, -5, 16, -19, 2, 10, 0, -11, -1 State the median. 30 POINTSSS HELPPPA yellow marble, a green marble, a red marble, a blue marble and a brown marble are dropped into an empty jar in the order given. The process is repeated until there are 88 marbles in the jar. How many of the marbles are red?A 15 B 16 C 17 D 18 E 20