Mathematics College

20 students in total. 10
play sports and 12 play music. 2 of them
don't play anything and some are play
both. What's the percentage for students
play both?

Answers

Answer 1

Answer:

20%

the above was solved using set

20 Students In Total. 10play Sports And 12 Play Music. 2 Of Themdon't Play Anything And Some Are Playboth.

Related Questions

what's the área of this triangle?​

Answers

Answer:

192 SQUARE FEET

Step-by-step explanation:

Area of a triangle= 1/2 ×base×height

1/2 of the base =32/2 ft

=16 ft

Let the height be A ft and another side(16 ft) be B ft

We know that, A^2 + B^2 =Hypotenuse^2

OR, A^2 + 16^2 = 20^2

OR, A^2= 400-256

OR, A^2 =144

OR, A= Square root of 144

OR, A=12 ft

By the problem,

1/2 ×Base×Height =Area of half of the triangle

1/2 ×16×12= Area of half of the triangle

96=Area of half of the triangle

AREA OF THE TRIANGLE=96 ×2

AREA OF THE TRIANGLE=192 SQUARE FEET.

HOPE IT HELPS

MARK ME BRAINLIEST

pahelp pooo, thank u

Answers

Answer:

1. 25 cm^2

2. 9 m

3. 4.8x5=24 m^2

4. 56/6=9.33 cm

5. 8x7.2=57.6 m^2

If 5000 is borrowed with an interest of 12.3% compounded semi-anually

Answers

Answer:

312.5

Step-by-step explanation:

P=5000

r=12.5%=0.125

t=6month=0.5years

I=P•r•t

I=(5000)(0.125)(0.5)

I =$312.5

Kiara has already written 37 pages, and she expects to write 1 page for every additional hour spent writing. How many hours will Kiara have to spend writing this week in order to have written a total of 50 pages?

Answers

Answer:

13 hours

Step-by-step explanation:

Since Kiara has already written 37 pages she only needs 13 more to get to 50 pages. If she takes one hour per page then it will take her 13 hours to write 13 pages.

Please help asap! I will gave brainlest!

Answers

The Answer to the problem is 1.

Juanita walks 3 hours and burns 750 calories

Answers

Answer:

And............ What?

The amount of television viewed byâ today's youth is of primary concern to Parents Against Watching Televisionâ (PAWT). 300 parents of elementaryâ school-aged children were asked to estimate the number of hours per week that their child watches television. The mean and the standard deviation for their responses were 12 and 3â, respectively. PAWT constructed aâ stem-and-leaf display for the data that showed that the distribution of times was aâ symmetric, mound-shaped distribution. Give an interval where you believe approximatelyâ 95% of the television viewing times fell in the distribution.

a. less than 9 and more than 15 hours per week
b. between 3 and 21 hours per week
c. between 6 and 18 hours per week
d. less than 18

Answers

Answer:

Option C. between 6 and 18 hours per week

Step-by-step explanation:

We are given that distribution of times is symmetric and mound shaped and this implies that data is normally distributed.

We also know that in the normal distribution the 95% of data lies within 2 standard deviations i.e. mean± 2*standard deviation.

So, 95% of the television viewing times falls in interval

mean± 2*standard deviation

12±2*3

12±6

[6,18]

Thus, [6,18] is an interval where you believe approximately 95% of the television viewing times fell in the distribution.

Find the slope of the line that passes through the points (-9,-4) and (-16,-8)?​

Answers

The slope is 4/7

Y= 4/7x + 8/7

Hope this helped :)

Determine whether f(x) = –52 – 10x + 6 has a maximum or a minimum value. Find that value and explain how you know.

Answers

Answer:

minimum

Step-by-step explanation:

Because of the negative infront of 52. The graph opens downward which makes it minimum. Hope this helps

Pieter wrote the equation 7h – 5(3h – 8) = –72 to model the number of hours it takes to dig a well to a level of 72 feet below sea level. How many hours will it take to dig the well?

4
10
14
17

Answers

Answer:14

Step-by-step explanation:

Answer:

14

Step-by-step explanation: Correct

Solve the linear inequality. Other than ∅​, graph the solution set on a number line.
Find the solution set in interval notation.

12x-8≤6x-15

Answers

The solution for the linear inequality, in interval notation, is [tex]\:(-\infty \:,\:-\frac{7}{6}][/tex].

Inequality

It is an expression mathematical that represents a non-equal relationship between a number or another algebraic expression. Therefore, it is common the use of follow symbols: ≤ (less than or equal to), ≥ (greater than or equal to), < (less than) and > (greater than).

The solutions for inequalities can be given by: graph in a number line or numbers.

For solving this exercise, it is necessary to find a number solution for  the given inequality.

                                 12x-8≤6x-15

                                12x-6x≤ -15+8

                                   6x≤-7

                                    x≤ -7/6

Read more about inequalities here.

brainly.com/question/25275758

The figure has line(s) of symmetry. What type(s) of symmetry does the figure have?

Answers

Answer:

i domisa

Step-by-step explanation:

What is the probability of getting a 7 of spades in a deck of 52 cards?

Answers

Answer:

I'm sure it's 1/52

Step-by-step explanation:

because if there is 52 cards and one 7 of spades then it would be a 1 out of 52 chance

A frame around a rectangular family portrait has a perimeter of 138 inches. The length is nine more than three times the width. Find the length and width of the frame.

Answers

Given :

Perimeter of the frame is 138 inches.The length is nine more than three times the width

⠀

To Find :

The Length and width of the frame .

⠀

Solution :

We know that,

[tex]\qquad{ \bold{ \pmb{2(Length + Breadth ) = Perimeter_{(rectangle)}}}}[/tex]

Let's assume the width of the rectangle as x inches. Then the length will become (3x + 9).

⠀

Now, Substituting the given values in the formula :

[tex]\qquad \dashrightarrow{ \sf{2(3x + 9 + x )= 138}}[/tex]

[tex]\qquad \dashrightarrow{ \sf{2(4x + 9 )= 138}}[/tex]

[tex]\qquad \dashrightarrow{ \sf{8x + 18= 138}}[/tex]

[tex]\qquad \dashrightarrow{ \sf{8x = 138 - 18}}[/tex]

[tex]\qquad \dashrightarrow{ \sf{8x = 120}}[/tex]

[tex]\qquad \dashrightarrow{ \sf{x = \dfrac{120}{8} }}[/tex]

[tex]\qquad \dashrightarrow{ \bf \: x = 15}[/tex]

⠀

Therefore,

[tex]\qquad { \pmb{ \bf{ Width _{(frame)} = x = 15 \: inches}}}\:[/tex]

[tex]\qquad { \pmb{ \bf{ Length _{(frame)} = (3x + 9) \: = 3(15) + 9 = 54 \: inches}}}\:[/tex]

Angle MNP ~ Angle HJK.
Both triangles are isosceles. if m

Answers

Answer:

Angles H, J, M, N

Step-by-step explanation:

Since m<p is 90 degrees it must be the largest angle so both triangles have angle 45-45-90. m<P is equal to m<K. This means that angle h, j, m, and n are equal.

angles M, N, and J.

try drawing diagrams to help you figure out the problem :)

Drag the tiles to the boxes to form correct pairs. Not all tiles will be used. Match each pair of points A and B to point C such that ∠ABC = 90°. A(3, 3) and B(12, 6) C(6, 52) A(-10, 5) and B(12, 16) C(16, -6) A(-8, 3) and B(12, 8) C(18, 4) A(12, -14) and B(-16, 21)

Answers

9514 1404 393

Answer:

A(3, 3) and B(12, 6), C(16, -6)A(-10, 5) and B(12, 16), C(18, 4)

Step-by-step explanation:

As the attached diagram shows, a perpendicular line from B intersects a choice of C only for B1(12, 6) and B2(12, 16). We note that there are only 3 choices of point C shown, instead of 4, so the question may be incomplete.

__

It seems easiest to graph the points and use a square (right-angle tool) to identify points C that may be appropriate.

It can also work to use a spreadsheet to do the slope calculations. You want to find a point C such that BC ⊥ AB, for a given AB pair. That is, the slope of BC is the negative reciprocal of the slope of AB.

The 2nd and 3rd C points listed make right angles with the 1st and 2nd AB pairs listed, respectively.

Based on the measures shown, could the figure be a parallelogram?
A Yes, one pair of opposite sides could measure
10 in., and the other pair could measure 13 in.
B Yes, one pair of opposite sides could measure
10 in., and the other pair could measure 8 in.
C No, there are three different values for x when each expression is set equal to 10.
D No, the value of x that makes one pair of sides congruent does not make the other pair of sides congruent.

Answers

Well to my measurements I’ve been in school long enough and to my calculations the answer is B

Hope this helps!!

12. You purchase a new computer for $2,100. The function f(x) = 2100(.5)* gives the value of the
computer
each year, where x is the number
of years since the computer was purchased. What is
the value of the computer after four years?
A. $1050
B. $525
C. $262.50
D. $131.25

Answers

Answer:

I think it's C but I never did this before so don't trust me

Step-by-step explanation:

2100 * 5 = 1050 and I divided 1050 by 4 which gave me $262.50

Find the area of the following figure. Explain how you got your answer.

Answers

Answer:

26.5

Step-by-step explanation:

cut the shape into 3 shapes

area of a retangle is = L*W=  5*4 = 20

Area of a triangle =  a= h*b/2 = 3*3/2 = 4.5

Area of a triangle = a= h*b/2 = 2*2/2 =2

Mike spent half of his allowance going to the movies. He washed the family
car and earned 9 dollars. What is his weekly allowance if he ended with 16
dollars ? HELP

Answers

Answer: Mike's weekly allowance is 20 dollars

Step-by-step explanation:

20 Dollars hope this Helpsssssss

can someone answer this question plsss now now​

Answers

Answer:

Abe I would estimate 20 and actual time would be 21

Lane I would estimate 15 and the actual time would be 17

Norma I would estimate 15 and actual time would be 13

Amado I would estimate 40 and actual time would be 40

Cesar I would estimate 25 and actual time would be 25

Step-by-step explanation:

Hope this helps a bit!

what would be twice a number?

Answers

Answer:

2x

Step-by-step explanation:

Substitute the x for a number like 2 and you multiply the 2 numbers together to get the total and in this case it would be 4.

Have a great day!!

Please rate and mark brainliest!!

HEY GUYS HELP ME ON THIS ONE PLS DO IT FAST

Answers

Answer:

The answer is 72

Step-by-step explanation:

The formula to find the area of a trapezoid

[tex]A= \frac{1}{2}h(b_{1} + b_2{} )[/tex]

First, we can add the bottom base together

5 + 8 + 3 = [tex]16_{2}[/tex]

We know that the height of the trapezoid is 6 and base1 is 8

[tex]A= \frac{1}{2}6(16 + 8)[/tex]

[tex]A=\frac{1}{2}6(24)[/tex]

[tex]A=3(24)[/tex]

[tex]A=72[/tex]

OR

Find the area of the two triangles

[tex]A=\frac{1}{2}5(6)\\\\A=5(3)\\\\A=15\\\\[/tex][tex]A=\frac{1}{2}3(6)\\\\A=3(3)\\\\A=9\\[/tex]

15 + 9 = 24

For the area of the rectangle

6 x 8 = 48

48 + 24 = 72

Four years ago Ravi was 8 years older than Priya. If he is now 3times as old as she is, find their present ages?

Answers

Answer:

24

Step-by-step explanation:

Hope this helps and please mark me brainliest :D

Which graph represents a proportional relationship?

Answers

Answe point me

Step-by-step explanation:

Answer:A

Step-by-step explanation:

Find the area of the kitchen

Answers

i think u multiply the number on the side and the number on the top or bottom of the kitchen. i can't see very clearly but i hoped this helped.

when a cannonball is fired, the equation of its pathway can be modeled by h=-16t^2+128t

Answers

Answer:

there is no way to further simplify the equation

Step-by-step explanation:

If a 40 ft tall flagpole casts a 256 ft long shadow then how long is the shadow that a 6 ft tall woman casts?
feet

Answers

Answer:

38.4 ft

Step-by-step explanation:

Basically, draw out your two Situations like I have did.

Then find the scale factor by doing 6/40.

Multiply the SF by 256 to get X, or the shadow of the woman.

The screenshot provided shows the drawings.

soIve for x. Show your work or no credit 1) -8x + 10x - 5 = 35​

Answers

Answer:

x=20

Step-by-step explanation:

Taryn had 7/8 of a pound of sugar. She used some
of the sugar to make muffins. She has 3/8 of a
pound of sugar left. How much sugar did she use to
make muffins?

Answers

Answer: 1/2

Step-by-step explanation:

7/8 - 3/8 = 4/8

4/8 = 1/2

Answer:

she used 4/8 of the sugar

Step-by-step explanation:

Other Questions
what is rule of law like in definition What is the difference of the fractions? Use the number line to help find the answer. One-half minus 1 and one-fifth A number line going from negative 2 to positive 2 in increments of StartFraction 1 over 10 EndFraction Negative 1 and StartFraction 7 over 10 EndFraction Negative StartFraction 7 over 10 EndFraction StartFraction 7 over 10 EndFraction 1 and StartFraction 7 over 10 EndFraction What is a biblical worldview and how does it compare to other worldviews? what is the difference between the hydrogen bonds holding the nitrogenous bases together in the DNA structure ? Solve b + 38 = 49 for b.Question options:A) 572B) 5972C) 16D) 3227 Which sentence contains an unclear pronoun reference?A)After the planes unloaded the passengers, they left the terminal.B)After they unloaded the passengers, the planes left the terminal.C) When the passengers reached the terminal, they greeted their families.D) After they were unloaded from the plane, the passengers left the terminal. The silence in the car is difficult to bear.I turn on the radio, and music fills the air.My fingers tap to the beat on the steering wheel.The guitars vibrate so loudly, they almost seem real.I glance at my child, sleeping in his car seat.The volume goes down, and he rests, so sweet.The road stretches out before me, like a ribbon of gray.Only a few more hours, and we will find a place to stay.I begin to sing again, as a new song plays on the radio.This time, however, I detect a small echo.The volume goes down, and I listen carefully.There is another voice, and I know it is not me.Just as I begin to wonder if the car has learned to sing,I glance back to see my once-sleeping child, sweetly harmonizing. 4. From what point of view is the poem told? three times a number m In translated English, the audio states: I want to buy a property of less than six hundred and sixty square meters in the city. My budget is six hundred thousand dollars. I don't need a garage and I prefer a balcony over windows. How many inch thick books can fit on a 14 1/2 inch-long bookshelf? 4. Sophie can type 128 words in 3 minutes.How many minutes will it take her to type 576words? how many partial products are in area model A After Batman brought the Joker to justice, the crime rate in Arkham City decreased by 12\%12%12, percent. Previously, the crime rate was ccc incidents per 100010001000 people. pls help me a. 19.6b. 25.8c. 18.1d. 20.4 1. Define stress. Why is stress necessary for life? 2. Give an example of an involuntary response to a stressor. 3. Define stressor. Give an example of a person, situation, and thought that could serve as a stressor. 4. How might a person's response to a stressor affect his or her health? 5. How might stress affect an individual's mental health? Social health? 6. Compare eustress and distress giving examples of each. 7. Explain what make the stress response such an individualized.8. Define the term time-management skills.9. Which personality type- type A or type B is more prone to stress? Explain.10. How can setting priorities be an effective way of managing stress?11. Compare five defense mechanisms, giving an example of each.12. Are there circumstance when being a type A personality is preferred over being a type B personality? Explain When asked, "What is the purpose of paper?" Kenyatta answered, "for writing on." Thinking "outside of the box," Geraldo added "to make airplanes, to make spit balls, to play paper football, and to use as place mats." Geraldo's response best demonstrates - thinking. Who is the father of literature Given A and B are vertical angles with mA = 20x + 10 and mB = 30x 10. What is x? 3.6 4 2 9 i will give brainliest Andrew bought 16 pears. He ate 4 pears. What percentage of the pears did Andrew eat? (1 point)25%32%40%64% What Islamic achievement was the most significant? Why?