There are 60 boys in the third year, 24 of whom study chemistry. What percentage of third year boys study chemistry.

Answers

Answer 1

Answer:

40%

Step-by-step explanation:

24/60 = .4

Answer 2

Answer:

40%

Step-by-step explanation:

Divide the total by the amount possible.


Related Questions

What is the area of the triangle shown below? 13 13 10

Answers

Answer: 60 units^2

Step-by-step explanation:

Which expressions are equivalent?

Answers

Answer:

the one already selected

Answer:

The one selected

Step-by-step explanation:

Calculate the sum. -16 + (-12) C A. 28 B. 4 C. -4 D. -28

Answers

Answer:

-28

Step-by-step explanation:

-16 +(-12)

= -16 - 12

adding both of them,

= - 28

the cost of fencing a circular field at the rate of Rs 12. per metre is Rs 2640 . find the radius of the field

Answers

Radius = 35 m 

Step-by-step explanation:Given:

Cost of fencing circular field is Rs 2640 at rate of Rs 12 per metre.

To Find:

What is the radius of the circular field ?

Solution:

 Let the radius of circular field be r metre.

Here , if we'll divide the total cost by per metre cost of fencing then we'll get circumference of the circular field.

★ Circumference = Total cost/Cost per metre ★

➯ Circumference = 2640/12

➯ 220 m

As we know that , formula of circumference is

★ Circumference = 2πr ★

⟹ 220 = 2 × 22/7 × r⟹ 220 = 44/7 × r⟹ 220 × 7/44 = r⟹ 20 × 7/4 = r⟹ 5 × 7 = r⟹ 35 = r

Hence, the radius of circular field is 35 metre.

Answer:

Solution given:

total cost =Rs 2640

rate=Rs 12/metre

We have

circumference of circle =[tex] \frac{total cost}{rate} = \frac{2640}{12} [/tex]

2πr=220m

r=[tex] \frac{220}{2π} [/tex]=35.01

r=35m(approximately)

the radius of the field is 35m.

I WILL GIVE U BRAINLIEST AND THANKS AND 5 STARS please help this is very important this is a big part of my grade

Answers

1. x=6
2. x=8/125
3. x=5
4. x=4/5

Identify the number of Point P below.

Answers

Answer:

1 1/4

Step-by-step explanation:

The answer would have to be 11/4

Correct I’ll give brainlist no links or I’ll report

Answers

Answer:

None of these answers

Step-by-step explanation:

Plug the points into the equation to see if they make sense

(4,-10),  -10=3(4)+2, -10=12+2, -10=14. Incorrect

(10,-4). -4=3(10)+2, -4=30+2, -4=32. Incorrect

(-10,-4), -4=3(-10)+2, -4=-30+2, -4=-28. Incorrect

Therefore, the answer is none of these answers

If this helps please mark as brainliest

A stick is cut into 8 equal pieces. If each piece were 10cm shorter,we could have cut the original stick into 12 equal pieces. How long is the stick?

Answers

Answer:

240 cm

Step-by-step explanation:

8x=12(x-10)

8x = 12x -120

120 = 4x

30 = x

Find the geometric mean of 16 and 36. Write your answer in simplest form. The geometric mean is​

Answers

Answer:

Step-by-step explanation:

the geo. mean is the nth root of the product of n numbers

Here there are two numbers; geo. mean is the square root of their product

g = √(16 * 36)

g = 4 * 6

g = 24

Geometric mean is the mean which is the average of a set of a product.

The geometric mean of the given numbers is 24.

What is geometric mean?

Geometric mean is the mean which is the average of a set of a product.

It can be given as,

[tex](\prod_{i=1}^{n}x_i)^{1/n}=\sqrt[n]{x_1\times x_2\times x_3...........x_n}[/tex]

Here [tex]x_i[/tex] is the values of the average and [tex]n[/tex] is the number of values.

Given information-

The numbers given in the problem is 16 and 36.

The Geometric mean for the number 16 and 36 has to find out.

Use the above formula to find the geometric mean for the number 16 and 36. Thus,

[tex]\prod=\sqrt{16\times36}[/tex]

[tex]\prod=\sqrt{576}\\\prod=24[/tex]

Hence the geometric mean of the given numbers is 24.

Learn more about the geometric mean here;

https://brainly.com/question/47038

since im too lazy to do this

order the points from least to greatest

here are the stuff roo put in least to greatest

-1/2
-1.125
0.375
1/2
-7/8​

Answers

Answer:

the answer is B

Step-by-step explanation:

Thomas is keeping records at the city fishing tournament. The table shows the information on the number of each type of fish caught in the tournament so far.
Perch: 32 Perch Fish Caught
SunFish: 21 SunFish Fish Caught
Bass: 14 Bass Fish Caught
Walleye: 12 Walleye Fish Caught

Find the probability that the next fish will be either a bass or a walleye. Write your answer as a percent, with the percent symbol. If needed, round to the nearest tenth.

Answers

Answer:

its 2.7% :D

Step-by-step explanation:

Im doing the quiz rn

explaination:

12/79 x 14/79 = 168/6241 (79 is the total fish)

168/6241 = 2.7% (rounded)

Hope I helped :D

Mila and Nadia have R480 between them.
Mila has 7 times as much as Nadia.
How much does each of them have?​

Answers

Answer:

Mila= 420 Nadia= 60

Step-by-step explanation:

Let's call Mila 7x. And x to Nadia. The two of them had a total of 480s.

Then we say 7x + x. Their total is 8x. So 480 = 8x. We divide both sides by 8. Here x = 60. Since Mila is 7x, we find Mila as 7.60 = 420, and since Nadia as x, we find Nadia as 1.60 = 60.

If there is any place you don't understand, you can ask.

#Achievements

Math HW Mr Thompson May 24

Answers

Answers:

B) 0A) 27D) 50See the diagram below.C) 143

================================================

Explanations:

Refer to the top left corner of the table. This is the intersection of the "less than 1 year" column and "antlers" row.Add up everything in the "1 year or older" column to get 12+15 = 27.There are 0+12 = 12 deer with antlers, and 23+15 = 38 deer with no antlers. I'm adding across the rows. This in turn means there are 12+38 = 50 deer total. You could also add across the columns, meaning we have 0+23 = 23 deer less than 1 years old, and 12+15 = 27 deer that are 1 year or older. So we have 23+27 = 50 deer total. The explanation is lengthy. There's not much room here so I'll explain in the section below. Refer to the table below as well.Dividing everything by 143 will help us get the values into percentages. For instance, 62/143 = 0.4336 = 43.36% approximately represents the number of people who wear a belt and also wear a watch (top left corner).

-----------

Explanation for problem 4

We have 68 people who split the check out of 122 total. That leaves 122-68 = 54 people who don't split the check. These two values are the row totals for rows 1 and 2 in that order. So you'll have 68 at the end of row 1, and 54 at the end of row 2. Refer to the diagram below.

We have 56 people who prefer to skip dessert, meaning 122-56 = 66 people who order desert. We'll have 66 followed by 56 along the first two items in the bottom row. The grand total 122 is in the bottom right corner. The 122 is both in the total row and total column.

Then we're told that 50 people order desert and split the check. We had 68 people split the check, leaving 68-50 = 18 people who split the check, but didn't get dessert. For the first row, we have the values 50, 18, and 68. Note that 50+18 = 68.

In the second row, we must have the values 16, 38, and 54 in that order. The blank spaces are filled in using the same ideas as I've discussed in previous paragraphs.

The terms in gray boxes represent the totals, which would be left out when forming the table in your final answer. Meaning you'll have a 2x2 table instead of a 3x3 table.

Anyone please help I just need help with this problem

Answers

Answer:

21.91 meters

Step-by-step explanation:

Since they already give you the hypotenuse, you will find the other missing side using this formula:

A= [tex]\sqrt{c^2 - b^2}[/tex]

So c² = 1,156

and b² = 676

1156 - 676 = 480

------

The square root of 480 is around 21.91

Let's double check, to double check, pretend that you don't know the hypotenuse, but you know the a and b sides.

So: 480.05 + 676 = 1,156.05

[tex]\sqrt{1156.05}[/tex] ≈ 34

-------

Have a good day :)

During a sale, an automobile dealer sold 69 cars and trucks. If she sold 27 more cars than trucks, how many did she sell?

Answers

She would have sold 96 cars in total.

Kate has 3 quarts of a 5% sugar solution she wants to mix this with 2478% sugar solution and X quarts of a 12% sugar solution to make a 10% sugar solution how many quarts of a 12% sure solution to Katie‘s

Answers

Answer:

The volume of the 12% sugar solution required, 'X' for a given volume of the 8% sugar solution, 'Y' is;

X = (2·Y + 15)/2

When the volume of the 8% sugar solution, Y = 2 quartz, the volume of the 12% sugar solution required, X = 9.5 gallons

Step-by-step explanation:

The data of the sugar solutions are;

The volume of 5% sugar solution Kate has = 3 quarts

The volume of the 12% sugar solution = X

Let 'Y' represent the volume of the 8% sugar solution, we have;

The volume of the resultant solution, Z = X + Y + 3

The concentration of the resultant solution = 10%

0.05 × 3 + 0.08·Y + 0.12·X = 0.1·(X + Y + 3)

Solving gives the relationship between the volume of the 12% sugar solution, 'X', and the 8% sugar solution, 'Y' in quartz, as follows;

X = (2·Y + 15)/2

When the volume of the 8% sugar solution, Y = 2 quartz, we have;

X = (2 × 2 + 15)/2 = 9.5

Therefore, the volume of the 12% sugar solution Katie requires to make the 10% sugar solution is 9.5 quartz.

A TV, has a listed price of $823.95 before tax. If the sales tax rate is 7.75%, find the total cost of the TV with sales tax included.
Round your answer to the nearest cent, as necessary.

Answers

Answer:

The price is $887.81.

Step-by-step explanation:

Multiply $823.95 by 0.075 to find the sales tax. Then add that number to the total, $823.95, to get $887.81.

Answer: $887.81
Step by step explanation: Cost of the TV + 7.75% of the TV cost to determine the sales tax.
Have a great day! Hope this helps.

The formula for the circumference, C, of a circle with given radius, r, is C = 2nr.
What is the circumference of a circle with a radius of 3 1-2 meters?
(Use 21
22
as an estimate for n.)
A. 7 meters
B. 11 meters
C. 22 meters
D. 44 meters

Answers

Answer:

C. 22

Step-by-step explanation:

C = circumference

n (pi) = 22/7

r = 3 1 /2

Plug in the numbers for each variable.

C = 2x (22/7) x (3 1/2)

Change the mixed number inIto an improper fraction by multiplying 3 x 2 and adding the 1 which gives us 7 over 2 because 2 is our denominator  so, 3 1/2 = 7/2. It also helps to have 1 as the denominator for 2.

C = (2/1) x (22/7) x (7/2)

Lastly, just multiply the numerators across which give us 308 then multiply the denominators across which gives us 14, so then we divide 308 by 14 and get 22.

Find the sum of the first 10 terms for the following sequence: a = {-1, 2, 5, ... }

Answers

Answer:

see, to find the next number, you need to add three to the last one

for example, the 3 was added to 2, so we have five here

5+3=8

8+3=11

and ....

so the next ten numbers are:

8, 11, 14, 17,20,23,26,29,32,35

I'm sorry, my mother tongue isn't English so please accept my apology if I haven't been able to explain it clearly, it's a pretty easy math problem so I think you got it

Answer:

it's +3 each time

Step-by-step explanation:

the formula for the nth term of an arithmetic progression is

[tex]a _{n} = d \times n + a _{1} - d[/tex]

Find 3 ratios that are equivalent to the given ratio.
3/4

Answers

Answer:

12/16

That’s one

WHAT IS THe ANSWER TO THIS !

Answers

2.5ft by 4.5ft

Make all of them into fractions(9/4 by 5/4) then multiply by .5 for every 1/4 (1/2 / 2) so the answer is 2.5 by 4.5

solve the equations: 4x - 6 = 6 - 2x , 3(x - 4) = 5​

Answers

Answer:

First of all are we solving for x

Step-by-step explanation:

4 × 3 = 12 =

6 - 2 ×

A bag of colored candies had 38 brown candies, 6 red pieces, 19 yellow pieces, 8 blue pieces, 17 orange pieces, and 12 green pieces. How many green pieces would you expect to find in a bag of 250 candies?

Answers

Answer:

138

Step-by-step explanation:

The surface area of a three-dimensional object is? This is a brainpop question, there is no picture, and tis a straight forward question

Answers

Answer:

What it is is basically when you take the area of every side of a three dimensional shape and then add it all together.

don't know if this is what you were looking for but I hope this helps.

Given m || n, find the value of x and y.
m(7x+13)
n(3y-17) (9x-19)

Answers

Answer:

[tex]9x - 19 = 7x + 13 \\ 2x = 32 \\ x = 16 \\ 3y - 17 + 9x - 19 = 180 \\ 9x + 3y = 180 + 17 + 19 \\ 9x + 3y = 216 \\ 3y = 216 - 144 = 72 \\ y = \frac{72}{3} = 24[/tex]

Round 958.989730730 to the nearest hundredth

Answers

Answer:

958.99

Step-by-step explanation:

Since the nine is bigger than four, you'd make the eight a nine.

For further help I suggest this website:

https://www.varsitytutors.com/hotmath/hotmath_help/topics/rounding-decimals

What is the total area in cm^2? 50 40 30 20

Answers

Answer:

50 cm²

Step-by-step explanation:

5 · 6 = 30 cm²

14 - 6 = 8

8 · 5 = 40 cm²

40 cm² ÷ 2 = 20 cm²

30 cm² + 20 cm²

50 cm²

What is the volume of the sphere with a diameter of 18 centimeters? Round to the nearest
hundredth.

Answers

Answer:

3054.024cm^3

Step-by-step explanation:

Given data

Diameter= 18cm

Radius= 9cm

The expression for the volume of a sphere is given as

Volume = 4/3πr^3

Volume= 4/3*3.142*9^3

Volume= 4/3*3.142*729

Volume= 9162.072/3

Volume= 3054.024 cm^3

Hence the volume is 3054.024cm^3

.. Using a truck, Mrs. Burkett needs to haul
46.8 tons of gravel from a quarry to a
jobsite. Her truck can haul 2 tons of
gravel at one time. What number of trips
will Mrs. Burkett need to make from the
quarry to the jobsite?
F 20 G 16 H 18 J 12

Answers

Answer: 18

Step-by-step explanation:

18

See your levels
A company has $2,145 to send its employees to a conference. The conference costs $39 for
each employee who attends. How many employees can the company send to the conference?

Answers

Answer:

55

Step-by-step explanation:

if it cost 2,145 for the whole thing and 39 for each person 2,145 divide by 39= 55

Other Questions
"A Mad Dash to Disaster": The First World War1. PART A: Which TWO of the following statement best summarize the central ideas of the? A. WWI was caused exclusively by the assassination of Archduke Franz Ferdinand.B. Historian Henry Kissinger was the most accomplished U.S. Secretary of State inAmerican history.C. No one nation or group can be singled out to blame for the outbreak of WWI.D. The roots of WWI were planted long before the assassination of Archduke FranzFerdinand.E. Trench warfare, because it was so deadly, was outlawed in future warfare at theParis Peace Convention.F. WWI permanently brought the U.S. out of isolation, deeply involving it in futureglobal matters, like WWII.2. Part B: Which TWO of the following quotes best support the answer to Part A?A. A history-making diplomat as well as a historian, Kissinger concluded that nocountry can be singled out, because [e]ach of the major powers contributed aquota of shortsightedness and irresponsibility (Paragraph 2)B. World War I (1914-1918) which claimed 32 million military and civiliancasualties, impoverished Europe, destroyed three empires, and set the stage foran even more savage World War II had many roots. (Paragraph 3)C. on June 28, 1914, a radical Serbian nationalist tossed a burning match byassassinating Archduke Franz Ferdinand, the heir to the throne of yet anotherEuropean superpower, the Austro-Hungarian empire of the Habsburgmonarchy. (Paragraph 7)D. What followed was a massacre that lasted an interminable four years, threemonths, and eventually brought into the maelstrom two million Americandoughboys. (Paragraph 16)E. The heaviest and eventually decisive fighting was done on the Western front,where French, British and eventually, American soldiers were locked in aremorseless trench warfare with von Schlieffens army. (Paragraph 18)F. in March 1917, President Woodrow Wilson had responded to the outrageoussinking of four American ships by German submarines by abandoning the U.S.policy of neutrality. (Paragraph 21)3. Why did the author most likely italicize the phrase for any reason whatever in Paragraph4?A. to emphasize that almost anything would provoke the allies to fight, and warwas basically inevitableB. to propose the idea that the allied countries were eager to fight, regardless ofwhom or what they would fightC. to stress Frances and Russias militaristic mindsets and superiority at the timeD. to clarify that the alliance was actually very general and loose, not as binding asit would later seem4. PART A: What does the word hazardous most likely mean as used in paragraph 4?A. unnecessaryB. riskyC. violentD. preventative5. PART B: Which of the following phrases best supports the answer to Part A?A. Faced by the fast-growing German empire (Paragraph 4)B. Desperate for allies (Paragraph 4)C. agreed to mobilize their armies (Paragraph 4)D. this hair-trigger arrangement (Paragraph 4)6. According to the text, how did the Central Powers, especially Germany, react to the UnitedStates entrance into the war?A. Given how late the U.S. entered the war, the Central Powers largely did not seethe U.S. as a threat.B. American declaration of war (as well as failing allies) prompted Germany tolaunch an all-out, final offensive.C. Germany was blamed for the U.S. joining the Allied forces and was essentiallyabandoned by the other Central Powers.D. Knowing the U.S. would be fighting in the West, the Central Powers beganfocusing on gaining land in the other two fronts.7. Which of the following best describe how the Schlieffen Plan shaped the overall war?A. The Schlieffen Plan forced both the Central and Allied Powers to fight on twofronts, exhausting them (especially Germany) and expanding the reach of thehorrors of the war.B. The Schlieffen Plan meant that France and Russia, the targets of the plan, werethe first to fall to the Central Powers control.C. The Schlieffen Plan forced Germany to fight on both sides, meaning that thiscountry conquered more land than the Allied Powers combined.D. The Schlieffen Plan was an overall failure and fell apart after the first majorbattle; neither side had to fight on multiple fronts, as planned, from that pointon.8. Which of the following best describes the major irony of the Paris Peace Conference?A. It was entirely run by the leader of the country that fought the briefest in thewar.B. The United States was given a very large role in the Peace Conference eventhough they supported Germany for the first half of the war.C. Though called a peace conference, it was formed at least by the EuropeanAllies with the intent to punish more than to seek peace.D. Though called a peace conference, it was formed to reassess and strengthenthe alliances that caused WWI in the first place. what does 1A= what does 1B= what does 1C= what does 1D= During a solar eclipse does Earth casts a shadow on the Moon or does the Moon cast a shadow on the earth? Bicycles that have been left outside in the summer will rust faster than bicycles kept inside. What causes the bicycles that are left outside to rust faster? Bikes that are kept outside are not used as often, speeding up the chemical reaction of metal rusting. Heat energy from the sun slows down the chemical reaction of the metal rusting. Moisture and oxygen cause oxidation, which speeds up the chemical reaction of the metal rusting. Wind energy outside speeds up the chemical reaction of the metal rusting. I am very confused- Can someone help within an hour- 8 x 9 = 8 x(5+ _)= (8 x 5) + (8 x _)= 40 + _= _ The mean absolute deviation is 46,54,43,57,50,62,78,42 Which correctly lists the 3 types ofradiation from least damaging to mostdamaging?alpha < beta < gammaalpha < gamma < betagamma < beta < alphabeta < gamma < alpha Which statement is true about the Korean Conflict?Question 4 options:Korea was divided into North and South Korean. The North was ruled by Communist. The South was capitalist. The US supported the North. The Soviets supported the South. Korea was divided into North and South Korean. The North was ruled by Communist. The South was capitalist. The Soviets supported the North. The US supported the South. Korea went to war with both the US and the Soviet Union in order to establish a communist nation. The Soviet Union tried to overtake all of Korea, so the US declared war and stopped them. Find the missing angle.Round to the nearest tenth.B = 50b = 8a = 10A= PLEASE HELP!!! URGENT, ILL GIVE YOU BRAINLIEST!!! Using the example of the digestion of food in the human digestive system, explain why enzymes areimportant for life processes. -Explain-NO LINKS PLEASE!!!!! Solve for x in the triangle below. Round your answer to the nearest tenthPlease is the last one4 mint left define and give an example of conduction and convection Jessica is writing an outline for her paper. Which of the following should not be included in her outline?the main idea of her essayevery detail of her essaythe structure of her essayI WILL MARK BRAINEST An organ, such as the eye or the heart, is composed of cells and________.A. tissuesB. water One bow requires 3.2 inches of ribbon. How manybows can be made from 304 inches of ribbon? Find the volume and surface area of the composite figure shown below if the figure is built with unit cubes. Determine the center and radius of the following circle equation:+ y2 123 + 8y 48 = 0 Which of the following statement is false? Group of answer choices Financing activities include the obtaining of cash from issuing debt and repaying the amounts borrowed. Statement of cash flows help investors assess the entitys ability to generate future cash flows. Noncash investing and financing activities should not be included in the body of the statement of cash flows. Interest payment on bonds payable is a cash outflow from financing activities. the effects of the Civil War (at least 5)