A study of 50 high school students showed that exactly 25 of them took Biology, exactly 20 of them took Chemistry, and exactly 12 of them took both subjects. How many of the 50 students took neither Biology nor Chemistry?

Answers

Answer 1

The answer is 5 because if you add up the people who took Biology and Chemistry you get 45 then if you subtract that from 50 you get 5. You don't pay any attention to the 12 because it's only there to trick you. You don't need to know that exactly 12 people took both Biology and Chemistry bc they are already accounted for in the 25 and 20.

Related Questions

Which of the following best describes the expression 5(x + 2)?

The sum of constant factors 5 and x + 2
The product of constant factors 5 and x + 2
The sum of a constant factor 5 and a 2-term factor x + 2
The product of a constant factor 5 and a 2-term factor x + 2

Answers

the expression would be "the sum of constant factors 5 and x + 2
hope this helps,
QueenofLovers123

Answer:

5 is a constant. (it has no variables)

x + 2 is not a constant. It does, however, have two terms, x and 2.

(terms are seperated by addition/subtraction)

This rules out a and b.

As for c... 5(x+2) implies multiplication, which would be a product, not a sum.

d. The product of a constant factor 5 and a 2-term factor x+2

Step-by-step explanation:

a cylindrical container can hold about 1,256 cubic inches of water.the diameter of the cylinder is 10 inches long.approximate the height of the cylinder to the nearest inch.use 3.14 to approximate the value for pi
A.16
B.80
C.40
D.4

Answers

Answer: A. 16 inches

Step-by-step explanation:

The volume of the cylinder is given by :-

[tex]\text{Volume}=\pi r^2h[/tex]

Given: Diameter of cylinder = 10 inches

Thus, radius of cylinder = [tex]\frac{10}{2}=5\ inches[/tex]

Let h be the height of the cylindrical container.

Then , The volume of the cylindrical container is given by :-

[tex]1256=\pi (5)^2h\\\\\Rightarrow\ h=\frac{1256}{5^2\pi}\\\\\Rightarrow\ h=\frac{1256}{25\times3.14}\\\\\Rightarrow\ h=16}[/tex]

Hence, the height of the cylindrical container = 16 inches.

Answer:

16 in.

Step-by-step explanation:

A cylindrical rain barrel with a diameter of 2.5 feet and a height of 3.5 feet is filled to a height of 1.5 feet. How many more gallons of water can the barrel hold? Round your answer to the nearest whole number. (1 ft3≈7.5 gal)

Answers

To answer this question you will need to find the total volume the rain barrel can hold. Then find the volume of water that it is currently holding.

Subtract these two amounts to find the total amount of water or can still hold.

Then convert this amount to gallons.

1. V = pi x r^2 x h
3.14 x 1.25^2 x 3.5
V = 17.17 cubic feet

2. Same formula
3.14 x 1.25^2 x 1.5
V = 7.36 cubic feet

3. 17.17 - 7.36 = 9.81 cubic feet

4. 9.81 x 7.5 = 73.575 gallons or approximately 74 gallons.

Plz help with this! Thx for the help

Answers

if my math is correct each gallon comes up to about 34 miles travelled, for 544 it would be 16 gallons and for 1 it would be 34, so if you keep adding to this on 7 gallons it will be 238 on 10 it would be 340

102 % 3 is 34 so 1 is 34 and you just tunes the gallons by 34 for the answer so ex(7X34=238) I hope this explanation helps you!

Cost for bowling at Blue Oaks bowling alley are $2.50 for shoes and $4.25 for each game bowled. Austin bowled 5 games. what was his total cost to bowl?
SOLVE FOR X AND PLEASE SHOW WORK!!!!

Answers

2.5 + 4.25x

2.5 + 4.25(5) = 2.5 + 21.25
= 23.75

Hope this help

can their be smaller integer than 0.5

Answers

Yes, but only if the integer is negative because all integers are whole numbers.

You had $50. You spent 10% of the money on clothes, 20% on games, and the rest on books. How much was spent inborn books?

Answers

Answer:

$35 was spent on books

Step-by-step explanation:

We must figure out the percent out of $50 that the books are worth

This is 70%

Now we need to figure out how much 10% is out of $50

50 divided by 10

10 percent of the books is 5 dollars

Now to find 20% we do 5+5=10 because it is just x2 of 10%

So we have spent 15 dollars on clothes and games

So now all we must do is 50-15=35

This is how we get our answer!

Pls mark me brainliest! Hope this helps :D

After spending 10% on clothes 20% on games I spent $35 on books.

What is the percentage?

A percentage is a value per hundredth. Percentages can be converted into decimals and fractions by dividing the percentage value by a hundred.

Given, You had $50. You spent 10% of the money on clothes, 20% on games, and the rest on books.

Therefore, The expression that represents the context is,

$(50 - (10/100)×50 - (20/100)×50).

= $(50 - 5 - 10).

= $35.

SO, $35 she spent on books.

learn more about percentages here :

https://brainly.com/question/24159063

#SPJ2

Kylie is on a swing the swing moves back and forth every 5 seconds. About how many minutes would it take Kylie to go back and forth one hundred times? Can you help me figure the minutes out in a fraction?

Answers

31/2 is what i got....its like 87% right

The fraction of the total time in minutes is therefore 8 1/3 minutes, which is equal to 25/3 minutes when expressed as an improper fraction.

To determine the amount of time it would take for Kylie to swing back and forth 100 times, we must first understand that the period of the swing, the time it takes to complete one full cycle back and forth, is 5 seconds. Therefore, we can calculate the total time for 100 swings by multiplying the period by the number of swings:

Total time (seconds) = Period (seconds per swing) * Number of swings

Total time (seconds) = 5 seconds/swing * 100 swings

Total time (seconds) = 500 seconds

To convert seconds into minutes, we divide by the number of seconds in a minute, which is 60:

Total time (minutes) = Total time (seconds) / 60 seconds/minute

Total time (minutes) = 500 seconds / 60 seconds/minute

Total time (minutes) = 50/6 or approximately 8 minutes and 20 seconds.

The fraction of the total time in minutes is therefore 8 1/3 minutes, which is equal to 25/3 minutes when expressed as an improper fraction.

Which number is IRRATIONAL? A) 64 B)81 C) 96 D) 144

Answers

96 because it is the only one that cant be rooted evenly

How do you find the value for x in the problem?

Answers

Make use of the fact that side lengths in similar triangles are proportional.
.. 30/18 = (20 +x)/20
.. 20*(30/18) -20 = x . . . . multiply by 20, subtract 20
.. 33 1/3 -20 = x . . . . . . . . evaluate the product
.. 13 1/3 = x

Round to the nearest ten thousand: 68,231

A. 69,000

B. 70,000

C. 68,000

D. 60,000

Answers

The number 68,231 is closer to 70,000 than it is to 60,000

So the answer is choice B

Another way to see this answer is to drop everything after the 6 (which is what is in the ten-thousands digit place) and replace all of those dropped digits with 0s. We add 1 to the digit we didn't get rid of because the 8 after the 6 is larger than 5

Hello there!

Your answer would be (68,00) because when rounding to the nearest 10th, we basically look at the tenth place.

6(8).

Number 8 is the 10th place, and it is over 5 to pass to line.

It goes right back up.
Your answer would be the (option b)

A. 69,000
B. 70,000
C. 68,000
D. 60,000

I hope this helps you!

Cylinders A and B are congruent. Cylinder A has a volume of 27π cm3 and a height of 3 cm. What is the area of the base of cylinder B?

Answers

To find this answer you would use the formula for finding the volume of a cylinder. Because both of these cylinders are congruent, the area of the base for cylinder A I would also be the same area for cylinder B. V=pi x r^2 x h. When we substitute in what we know this is the new equation: 27 x pi = pi x r^2 x 3. Divide both sides by three and pi. This gives us 9 = r^2. Take the square roots of both sides to find the radius. The answer would be 3. Now use the formula for area of a circle to find the area of the base of cylinder B. A= pi x r^2. So the area would be 9 x pi.

Answer:

9pi

Step-by-step explanation:

Figure ABCD is a parallelogram. which of the following must be true.

Answers

I believe it is the first choice

In a parallelogram opposite sides are parallel to each other.

So side AD is parallel to side BC

From the above four options as we can see in option C we have AD║ BC.

Option C is the correct answer.

HELP ASAP PLEASEEEE WILL GIVE BRAINLIEST!

Answers

_
ab i think that is the answer

I'm pretty sure your answer is AB.

Determine if the number is written in scientific notation. If not, explain. 4.8 × 1007

Answers

it is not because you do not have 10 to the something.

ANSWER ASAP WILL GIVE BRAINLIEST Boris solves the system of equations using the linear combination method.

3x+4y=−87x−3y=6
Which steps would allow him to eliminate the y terms in the system of equations?

Multiply 3x+4y=−8 by 3. Multiply 7x−3y=6 by 4. Add the resulting equations together.

Multiply 3x+4y=−8 by 7. Multiply 7x−3y=6 by −3 . Add the resulting equations together.

Multiply 3x+4y=−8 by 4. Multiply 7x−3y=6 by 3. Add the resulting equations together.

Multiply 3x+4y=−8 by −3 . Multiply 7x−3y=6 by 7. Add the resulting equations together.

Answers

The answer is А

Multiply 3x+4y=−8 by 3. Multiply 7x−3y=6 by 4:
{3x + 4y = -8 |*3
{7x - 3y = 6 |*4

{9x + 12y = -24
{28x - 12y = 24

Add the resulting equations together:
37х = 0

Answer:

a is the answer

Step-by-step explanation:

i did the test

HELP WILL MARK BRAINLIEST!!!!!!!!
Three angles in a quadrilateral measure 31º, 83º, and 146º. What is the measure of the fourth angle?

A. 82º

B. 97º

C. 100º

D. 112º

Answers

You'd need to know the degrees of a quadrilateral which is, 360 degrees.

I'm going to represent x as the degrees we need to find:

31+83+146+x=360

*add like terms*

260+x=360
x=100

The degrees of the angle is 100 degrees. Therefore, your answer is choice C.

Write a linear equation to represent her distance at any time

Answers

Kayleens average speed is 70 miles per hour.

Her average speed was 70 MPH because 208 miles Divided by 4 because the time was 4:00 equals 70 so the answer is 70 mph

PLZ GIVE ME BRANLIEST

help with this one plzzz?

Answers

(8x+4)+(18-8x)=8x+4+18-8x=0+22=22
the choice is D

If x = 12 cm, y = 8 cm, z = 10 cm, and w = 3 cm, what is the surface area of the geometric shape formed by this net?
A. 288 cm2
B. 144 cm2
C. 192 cm2
D. 160 cm2

Here's the shape: https://media.studyisland.com/pics/127804pic7.png

Answers

Solve for the area of the figures.
3 rectangles and 2 triangles (or 4 right triangles).

View attachment

btw I think you gave the wrong measurements probs cuz it doesn't come up with any of the options for the answer but I know it is 186 cm^2 for sure...

Paul has a board that is 1,200 cm long. Which of the following measures is equivalent to 1,200 cm?

a. 0.12 km
b. 12 m
c. 120 m
d. 120,000 mm

Answers

1 m =100cm
Therefore
12m = 1200 cm
answer is B

Answer:

The correct answer is B.

Step-by-step explanation:

Its B because 1m = 100m

12m = 1,200

The relation {(-1, 4), (2, 7), (3, 7)} is a function. True False

Answers

Tryour answear is true

Answer:

True

Step-by-step explanation:

I did the quiz and got 100%

helllllllllllp meeeeeee

Answers

The constant of proportionality in terms of the cost per text is the coefficient of [tex]t[/tex] in the equation [tex]b=0.25t[/tex]. Since the coefficient of [tex]t[/tex] is 0.25, the constant of proportionality in terms of the cost per text is 0.25.
Proportionality constants are usually expressed as fractions, so lets convert 0.25 to a fraction. To do that we are going to add the denominator 1 to our decimal, and then we will multiply both numerator and denominator by ten for every number after the decimal point:
[tex] \frac{0.25}{1} [/tex]
[tex] \frac{0.25}{1} . \frac{100}{100} = \frac{75}{100} [/tex]
Finally, we can simplify our fraction:
[tex] \frac{25}{100} = \frac{1}{4} [/tex]

We can conclude that the constant of proportionality in text of the cost per text is 1/4

Find an angle at home. Measure the angle. Record the measure. Classify the angle.

Answers

find a box and say the angle is 90° and u should be able to figure the other stuff out.

Answer:

a table leg it is 90 degreges from the floor it is a right angle.

Step-by-step explanation:

a 12 foot tall building casts on 8 foot long long shadow. how long of a shadow will a 5 foot tall women have

Answers

This is just a basic proportion. 5/8 = x/12. So the 5 foot tall women would have a 7.5 foot shadow.

Final answer:

Using the concept of similar triangles and the given ratio of a building's height to its shadow, it was calculated that a 5-foot tall woman would cast a shadow that is approximately 3.33 feet long.

Explanation:

The question deals with similar triangles where the ratio of the height of an object to the length of its shadow is constant if the sun's rays are considered to be parallel. Given that a 12-foot tall building casts an 8-foot long shadow, we can use this ratio to determine the length of the shadow that a 5-foot tall woman will cast.

First, find the ratio of the building's height to its shadow's length:

Height of the building / Length of shadow = 12 feet / 8 feet = 1.5

Since the ratio should remain the same, we can set up a proportion for the woman:

Height of the woman / Length of her shadow = 5 feet / x (the unknown length of the shadow)

Now solve for 'x' using cross multiplication:

12 / 8 = 5 / x12*x = 5*8x = (5*8) / 12x = 40 / 12x = 3.33 feet (approximately)

Therefore, the shadow cast by the 5-foot tall woman will be approximately 3.33 feet long.

HELP Me A marker is randomly selected from a drawer that contains 20 green, 44 orange, and 30 blue markers. Which statement is true?

P(orange)≈0.53

P(green)≈0.21

P(blue)≈0.41
Thank you

Answers

To find the odds first find the total 20+44+30=94 and find the odds so there are 44 orange markers that is 44/94
44/94 as a decimal is .468 so the first one isn't true
green is 20/94 as a decimal is 0.21
so the second option or the green one is true

Answer:

P(green)=0.21

Step-by-step explanation:

I got it right on a test :)

Please consider brainliest (I never got brainliest before)

Marlene's taxable income is $95,000. Use this tax schedule to calculate the total amount she owes in taxes. $12,888.75

Answers

Marlene owes a total of $20,710.75 in taxes.

If we are using the same tax schedule then $95,000 belongs to this bracket:
Over - But not over - of the excess over -
$77,100 but not over $160,850.. 15,698.75 plus 28% 77,100

Get the 28% of the difference between $95,000 and $77,100:
$95,000 - $77,100 = $17,900
$17,900 * .28 = $5,012

$15,698.75 + $5,012 = $20,710.75

50 POINTS AND BRAINLIEST! :) :) :)

Write an equation that you can use to solve for x.

Enter your answer in the box.

Answers

Hey there! :D

So, the angle measuring 100 degrees is supplementary to the angle that is adjacent to it, next to the one that is 60 degrees.

180-100= 80

It is 80 degrees.

80+60+x= 180

140+x= 180

Subtract 140 on both sides.

x=40

40 is the answer.

I hope this helps!
~kaikers

80+60=140
180-140=40
X=40
This would help

if you roll a fair six-sided number cube twice. what is the probability that the first roll is a 5 and the second is a 6?

Answers

1/6*1/6=1/36
answer is 1/36

at the park, 4/7 of the children are boys. if there are 8 boys at the park, how many are girls?

Answers

There are 4/7 boys, so there are 3/7 girls.

Let the total number of children be x.

4/7x = 8
1/7x = 8 ÷ 4
1/7x = 2
3/7x = 2 x 3
3/7x = 6

There are 6 girls.

6 because 4/7 boys means a ratio of 4:3, so twice 4 to make 8 means twice 3 to make 6.

Other Questions

The term "hearing impaired" is preferred by most deaf adults. true false What is one major advantage of group discussions?Students get practice in speaking and listening.Students can multitask while participating.Teachers can control all opinions expressed.Teachers let students have complete control. Write the expression the sum of seven times a number and five, divided by the sum of negative two times the number and eleven using algebra. Choose the correct phrase below. what is an Eastern Front if an elephant has a mass of 2,000 kg, what is its weight on Earth? (1 point) A. 0.0049 N B. 204 N C. 19,600 N D. 43,100 N Perform the indicated operation. (2x + y)(3x^2 + y) The flow of surface run-off can be controlled by building retaining walls called _____. Find the lateral area for the cylinder with the given measurement. r = 4, h = 5 20 square units 40 square units 80 square units Net sales are $3495000, beginning total assets are $1412000, and the asset turnover is 3 times. what is the ending total asset balance? What was the northern boundary of the Egyptian settlement? To paraphrase a recent author "perhaps we foresee a time when men, exultant in the technique of homicide, will rage so hotly over the world that every precious thing will be in danger, every book and picture and harmony, every treasure garnered through two millenniums, the small, the delicate, the defenselessall will be lost or wrecked or utterly destroyed." What technique is Roosevelt primarily using to disagree with the belief that America should remain isolated?He is communicating his utter lack of hope in America's future.He cites other educated, respected people who agree with his viewpoint.He is pointing out the error in the audience's logic, which will motivate it to act.He is using loaded language, which undermines his credibility. use the formula a=h/n to find the batting average a of a batter who has h hits in n times at bat.Solve the formula for h. if a batter has a batting average of .290 and has at bat 300 times, how many hits does the batter have?, What aspect of the war was the greatest cause of casualties?modern weaponstrench footnationalismuntrained soldiers The Doppler effect indicates that the universe is expanding because_____A. Light from other galaxies is the same color B. Light from other galaxies is different colorsC. Light from other galaxies is blue shiftedD. Light from other galaxies is red shifted 64,55,46,37,28,19 find the math patter what goes next A dog travels north for 18 meters, east for 8 meters, South for 27 meters and then west for 8 meters. What is the distance the dog traveled and what is the displacement of the dog. the selection of delegates to the national convetion produces ____?A.unity in each partyB.state organizatons for both political parties C.conflict in each partyD.common dates for both parties to hold political conventions I would be much appreciated if somebody took time out of their day to answer this for me. What does it mean that we are in an "extinction crisis"? Do both plants and animal cells have endoplasmic reticulum?