Mathematics College

A teacher surveyed his class about how many played a sport and worked part-time at a job. The Venn diagram shows her results. If a person from the class is randomly selected, what is the probability that person works part-time given that they play a sport?
a)3/5
b)2/5
c)2/11
d)3/11

P( works | sport )

A Teacher Surveyed His Class About How Many Played A Sport And Worked Part-time At A Job. The Venn Diagram

Answers

Answer 1

Answer:

2/ 5

Step-by-step explanation:

From the venn diagram, find tbe probability ;

P(work | sport)

Recall :

P(A | B) = P(A n B) / P(B)

From the venn diagram :

P(work | sport) = P(work n sport) / P(sport)

P(work n sport ) = 4

P(sport) = 6 + 4 = 10

Therefore,

P(work | sport) = P(work n sport) / P(sport)

P(work | sport) = 4 / 10

P(work | sport) = 2/5

Related Questions

Find the zeros of the function. f(x) = 9x3 + 36x2 + 27x

Answers

Find the zeros of the function. f(x) = 9x3 + 36x2 + 27x

x=0 , -1 and -3

Need help please it’s due today show work

Answers

Answer:

16

Step-by-step explanation:

KEEP CHANGE FLIP

10/1 divided by 5/8 turns into

10/1 multiplied by 8/5, which is

80/5 = 16

How many 1/8's are in 1¼?

Answers

Answer:

there are 2 1/8

Step-by-step explanation:

plz brainllest

Which one should I choose

Answers

Answer:

it depends what are your choices

In which of the tables below x and y are inversely proportional? Find the constant of variation. PLZ PLZ PLZ PLZ PLZ PLZ HELP WILL GIVE 5 STARS AND THANKS AND MARK BRAINLYIST
(a)
x 3 4 5 5.5
y 8 6 4.8 4

(b)
x 0.1 0.5 75 100
y 300 60 0.4 0.3

HELP plz :( :((((((((

Answers

The answer is B

Step-by-step explanation:

the table B represent an inverse variation, the constant of variation k is 30

Are My answers Correct? I NEED ANSWERS!

Answers

Answer: yes

Step-by-step explanation:

Oscar lends his brother $125.00 and charges him 5% interest. How much will Oscar's brother pay back for the loan?

Answers

131.25 is the answer.

A student solves the equation StartFraction x + 3 Over 2 EndFraction = StartFraction 3 x + 5 Over 5 EndFraction using the steps in the table. Original equation StartFraction x + 3 Over 2 EndFraction = StartFraction 3 x + 5 Over 5 EndFraction Cross multiplication 5 (x + 3) = 2 (3x + 5) Distributive property 5 x + 15 = 2 (3 x + 5) Subtraction property of equality 5 = x Which method of solving for the variable could be used instead of cross multiplication?

Answers

Answer:

using the multiplication property of equality to multiply both sides of the equation by 10

One of the alternate method can be multiplying both sides by the LCM of numerators of fractions on both sides

The alternate method of LCM produces the same answer so the correct answer is using the multiplication property of equality to multiply both sides of the equation by 10

The equation (x + 3)/2 = (3x + 5)/5 can be solved by first multiplying both sides of the equation by the LCM of the fractions (10)

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

Given the equation:

(x + 3)/2 = (3x + 5)/5

Multipling both sides of the equation by the LCM of the fractions, i.e 10:

(x + 3)/2  * 10 = (3x + 5)/5   * 10

5(x + 3) = 2(3x + 5)

The equation (x + 3)/2 = (3x + 5)/5 can be solved by first multiplying both sides of the equation by the LCM of the fractions (10)

Find out more on equation at: https://brainly.com/question/2972832

#SPJ2

Solve the system by substitution
-x+y=7
x-y=-7

Answers

Answer:

Addition Method To Solve The System Xm Se The Substitution Method To Solve The System Ne Substitution Method To Solve The System 4x + Y = 7 6 Xy 17 ...

Step-by-step explanation:

Which Relation is a function ​

Answers

Answer:

It is A

Step-by-step explanation:

also i had the exact same question on a test which i got a 100% on.

The Suarez family paid $24.00 for 4 movie tickets. How much would they have paid for 12 tickets?

Answers

Answer:

72 i think

Step-by-step explanation:

dhdhdhhdhdhdhxurhsgysydgdghdhdhdhhdhsusiisiisisii

Answer:

oooh k nvm

Step-by-step explanation:

Please help!!! 20 points

Answers

Answer:343

Step-by-step explanation:3434343

A big box retailer has one order for 9 plants and 6 bushes with a cost of $390. There is a second order for 7 plants and 8 bushes with a
cost of $400.
Which system of equations can be used to determine the price of a plant, p, and the price of a bush, b?

9p +6b = 390
7p + 8b = 400

9p + 8b = 390
7p + 6b = 400

7p + 8b = 390
9p + 6b = 400

7p +95 = 390
6p+8b = 400

Answers

Answer:

Here you go( I dont feel like taking a screen shot- sorry)

Step-by-step explanation:

Very helpful for k12 students, and hope this helps! sorry I am late.

9p+6b=390

7p+8b=400

(I took the test on this and got it right!)

Mary bought 13 gallons of gas that cost $47.71. Each gallon of gas cost the same amount. Which equation represents the cost, c, for g gallons of gas?

Answers

Answer:

620.23

Step-by-step explanation:

someone please help with this question for my baby sister

Answers

Answer: HI! its B

Step-by-step explanation:

have a great day tell your sis i said hi!

Janet can make a
of a necklace in 20 minutes. At this rate, how many necklaces, to the nearest tenth of a necklace, can Janet make in 1 hour?

Answers

Answer:

she can make 4 necklaces . theres 60 minutes in an hour if it takes 20 minutes she can make 4 . 4x20=60

Step-by-step explanation:

Answer:

3/5

Step-by-step explanation:

Solve for y.
(4y + 5) (-2y + 3) = -3-7y - 8y2 +9y - 9

Answers

Step-by-step explanation:

hope this will help you......

Answer:

[tex](4y + 5)( - 2y + 3) =-3 -7y - 8 {y}^{2}+9y - 9 \\ - 8 {y}^{2} + 12y - 10y + 15 = - 12 + 2y - 8 {y}^{2} \\ - 8 {y}^{2} + 2y + 15 = - 12 + 2y - 8 {y}^{2} [/tex]

value of y is getting cancelled outso value of y does not exist.

Simplify ASAP need answers and show work


i^99

Answers

Answer:

1

Step-by-step explanati1

Rosa is ordering a submarine sandwich from the corner deli. The deli
charges $6.25 for a 7-inch sub. Some additional toppings cost extra. Rosa's
sandwich with two extra toppings costs $7.75. What is the cost per additional
topping?

Answers

Answer:

75 cents

Step-by-step explanation:

trust me pls and id its wrong i will paypal u 75 cents

What is the value of x in the equation 3
X-
3
8
5
X2

Answers

Answer:

x = 1

Step-by-step explanation:

[tex] \frac{1}{2} x - \frac{3}{4} = \frac{3}{8} - \frac{5}{8} x \\ \\ \frac{1}{2} x + \frac{5}{8} x = \frac{3}{8} + \frac{3}{4} \\ \\ \frac{1 \times 4}{2 \times 4} x + \frac{5}{8} x = \frac{3}{8} + \frac{3 \times 2}{4 \times 2} \\ \\ \frac{4}{8} x + \frac{5}{8} x = \frac{3}{8} + \frac{6}{8} \\ \\ \frac{4 + 5}{8} x = \frac{3 + 6}{8} \\ \\ \frac{9}{8} x = \frac{9}{8} \\ \\ x = \frac{9}{8} \times \frac{8}{9} \\ \\ x = 1[/tex]

Heh sorry I need help again...
David wants to save $186 for a trip to an amusement park. He sets aside $12 of his allowance at the end of each week. How many weeks will it take him to save enough money for the whole trip?

Answers

Answer:

It will take him 15 and a half weeks.

Step-by-step explanation:

186 ÷ 12

Answer:

12*7=?

Step-by-step explanation:You have too count 12 ,7 times t

If $m \Diamond n = (m^2 - n) \div n$ for all real numbers $m$ and $n$, where $n \neq 0$, what is the value of $6 \Diamond 3$?

Answers

By definition of ◇, you have

6 ◇ 3 = (6² - 3)/3 = (36 - 3)/3 = 33/3 = 11

A baseball player gives up 6 earned runs in 18 innings . If he continues at this rate how many earned runs will he give up in 81 innings?​

Answers

Answer:

27 earned runs

Step-by-step explanation:

Given

Rate: 6 runs in 18 innings.

Required

Determine the number of runs in 81 innings

First, we need to calculate the rate.

[tex]Rate = \frac{Runs}{Innings}[/tex]

[tex]Rate = \frac{6}{18}[/tex]

[tex]Rate = \frac{1}{3}[/tex]

Represent the number of runs in 81 innings as x.

The rate of x runs in 81 innings is;

[tex]Rate = \frac{x}{81}[/tex]

Equate both rates

[tex]\frac{1}{3} = \frac{x}{81}[/tex]

Make x the subject

[tex]x = \frac{1}{3} * 81[/tex]

[tex]x = \frac{81}{3}[/tex]

[tex]x = 27[/tex]

Hence, he will give up 27 earned runs

My next challenge was that I wanted to make things out of metal, so I became interested in how to use a lathe, a milling machine, and so on. I went to buy this new equipment I thought I'd need and met a man who had a machine shop of his own who was about to retire and move to Florida. He allowed me to visit him after school and on weekends to observe how he used all his tools. I was hooked. When he retired I bought not only all his big equipment but all his little toolboxes as well – they were treasures!
—“On Becoming an Inventor,”
Dean Kamen
Read this passage. Use details from the text to explain how Kamen supports his opinion that making things out of metal was enjoyable.


Read this passage. Use details from the text to explain how Kamen supports his opinion that making things out of metal was enjoyable.

Answers

Answer

The thing that supports his opinion

that making things out of metal was enjoyable was the fact that he has so resouses and materta to make these things. In the text, it says that "He allowed me to visit him after school and on weekends to observe how he used all his tools." This means that his learning how to make things out of metal meaning the more he learns is the more it becomes fun.

Yeahh

Evidence: "He allowed me to visit him after school and on weekends to observe how he used all his tools."

"When he retired I bought not only all his big equipment but all his little toolboxes as well – they were treasures!"

" I was hooked."

Ans: Kamen found making things out of metal so enjoyable that he learned how to use a lathe and a milling machine. He visited a machine shop owner after school to observe how he used tools. Then he bought the shop owner's tools after he retired.

ANother Ans would be: Because of the.

Ans No.2 actually works as that's what I used.

Exp: Edge 2022

Guillermo has 6 days left to finish his summer reading project but still needs to select a book to read. He can read a maximum of 22 pages in 1 day.

Which inequality can Guillermo use to help him select a book with x pages so that he can complete the book within 6 or fewer days?

Answers

Answer:

x / 22 ≤ 6

Step-by-step explanation:

Given that :

Maximum number of pages readable per day = 22

Number of days left = 6

The book which can be completed within 6 days or fewer:

Number of readable pages per day :

(Total number of pages / maximum number of pages readable per day) ≤ number of days left

Hence, the inequality can be represented mathematically as :

x / 22 ≤ 6

Opposite of Gain of 30 yards

Answers

is it loss of 30 yards?

Answer:

Step-by-step explanation:

-30

PLEASE HELP STAT AND FILL IN THE BLANKS
Alyson has 30 beads to make bracelets. Each bracelet has 7 beads. How many more beads does Alyson need so that all the beads she has are used? Complete the explanation. If Alyson made ? bracelets, she would use ? beads, leaving ? leftover. So she needs to make one more bracelet, which means she needs ? more beads

Answers

Answer: So if Allison has 30 beads and each bracelet has 7. She would make 4 bracelets with 2 left over. The sentence would be If Alyson made 4 bracelets she would use 28 beads, leaving 2 left over.

Step-by-step explanation: 30/7 is 4 with a remainder of 2

Evaluate the expression 3x - 17 when x= -12

Answers

Answer:

3(-12)-17

we get -36 -17=-53

Answer:

-53

Step-by-step explanation:

Since x= -12 you would have to replace the x in the equation with -12. (Start with 3x-17 End up with 3(-12) -17 ) So after replacing x with -12 you would solve. 3* -12= -36 and -36 -17= -53. So after all of that, your final answer would be -53.

The length of a picture frame is (8u - 12) inches. It’s width is 3/4 of its length. Express the width of the picture frame in terms of u.

Pls help I have no idea what to do

Answers

3/4(8u-12)..................

6⋅2+6
4
plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz help

Answers

Answer:

76

Step-by-step explanation:

6.2=12 then add 64 which should get you 76

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