17 points to whoever gets these right please help <3

1.Since there are 23 students in total, and 8 of them play neither sport, then the remaining 15 must play either sport. Therefore, there are [tex]11+13-15=9[/tex] students who play both sports.[tex]A[/tex] choosing a student who plays both sports[tex]|\Omega|=23\\|A|=9\\\\P(A)=\dfrac{9}{23}[/tex]2.[tex]A[/tex] drawing three marbles that are blue[tex]6+5+4=15[/tex] the number of all marbles[tex]\displaystyle\\|\Omega|=\binom{15}{3}=\dfrac{15!}{3!12!}=\dfrac{13\cdot14\cdot15}{2\cdot3}=455\\|A|=\binom{5}{3}=\dfrac{5!}{3!2!}=\dfrac{4\cdot5}{2}=10\\\\P(A)=\dfrac{10}{455}=\dfrac{2}{91}[/tex]

Mathematics Middle School

17 points to whoever gets these right please help <3

Answers

Answer 1

Since there are 23 students in total, and 8 of them play neither sport, then the remaining 15 must play either sport. Therefore, there are [tex]11+13-15=9[/tex] students who play both sports.

[tex]A[/tex] — choosing a student who plays both sports

[tex]|\Omega|=23\\|A|=9\\\\P(A)=\dfrac{9}{23}[/tex]

[tex]A[/tex] — drawing three marbles that are blue

[tex]6+5+4=15[/tex] — the number of all marbles

[tex]\displaystyle\\|\Omega|=\binom{15}{3}=\dfrac{15!}{3!12!}=\dfrac{13\cdot14\cdot15}{2\cdot3}=455\\|A|=\binom{5}{3}=\dfrac{5!}{3!2!}=\dfrac{4\cdot5}{2}=10\\\\P(A)=\dfrac{10}{455}=\dfrac{2}{91}[/tex]

Related Questions

The area of Angelo's circular kitchen table is 28.26 square feet. When two people sit across from each other at the table, how far apart are they?
(Pls help step-to-step)

Answers

Answer:177.472

Step-by-step explanation:

[tex]2\pi r[/tex]

177.42 because 2 pie r

Write the expression. Then, complete the statements. twice the difference of a number and seven A 2-column table with 4 rows. Column 1 is labeled Key Words with entries twice, the difference of, a number, seven. Column 2 is labeled Replace with entries 2 times, (minus), n, 7. The word “twice” means . The words “the difference of” indicate . The expression is written as . do it NOW

Answers

The statement is presented in a two column table as shown below

Key Words Replace

twice 2 times

the difference of minus

a number n

seven 7

How to rewrite the expression

The expression is written using the information presented in the problem.

Let the number be n and knowing that "twice, the difference of, a number, seven" from the problem can be written to be

2n - 7.

This is written step by step as in the two column table

Learn more about two column table

https://brainly.com/question/13126131

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Answer:

Sure, here is the expression and the completed table:

The word “twice” means to multiply something by 2. The words “the difference of” indicate that we subtract one number from another. So, the expression “twice the difference of a number and seven” can be written as 2(n−7).

Is there anything else I can help you with?

Step-by-step explanation:

Write 75,000,000,000 in scientific notation

Answers

7.5*10 (to the power of 10)

75000000 = 7.5 × 107.

my brain is not functioning anymore pls help

Answers

260 counters are yellow

Explain how got got the answer :) tysm

Answers

The first picture (measurement):
You take 22.86 and subtract 15.24 from it to get 7.62 cm from 3 inches

Divide 7.62 by 3 to get 2.54 (1 inch)

Multiply 2.54 by 50 = 127cm
The answer is 127cm

The second picture:

Part a (measurement):
Information given:
- An object on Mars is 70lbs weighs 210lbs on Earth
- An object weighs 160lbs on Earth, how much would it weigh on Mars?

Divide both sides by 42 (because 210 divided by 42 is 5 and 5 is a common factor in 160)
- 70lbs on Mars/42 = 1.6lbs
- 210lbs on Earth/42= 5lbs

It looks complicated but it isn’t!

1.6:5 ratio is given
Now multiply both sides of the ratio by 32
1.6 x 32= 51.2lbs on Mars
5 x 32 = 160lbs on Earth

The answer is 51.2lbs on Mars

Part b (shopping)
- 6 oranges for $2
- it is asking for the cost of 10 oranges

6 oranges/3 = 2 oranges
$2/3 = $.67

2 oranges x 5 = 10 oranges
$.67 x 5 = $3.35

Therefore the cost for 10 oranges is $3.35

- Hope this helps!

The action of the object is 127cm.

How to find the action of the object?

To find the action of an object in centimeters if it is 50 inches long, let the action of the object be [tex]x[/tex]

[tex]\frac{15}{6} =\frac{x}{50}[/tex]

[tex]15.4 * 50 = 6 * x[/tex]

[tex]\frac{762}{6} =\frac{6x}{6}[/tex]

[tex]x=127[/tex]

Therefore, the action of the object is 127cm.

A grocery store sells 6 oranges for $2. How much would it cost to buy 10 oranges? Round to the nearest cent if necessary.

cost per orange: $2/6 = $0.3333

cost of 10 oranges: $0.3333 x 10 = $3.3333 ($3.33 rounded up to the nearest cent)

Learn about cost of items here brainly.com/question/2236192

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Based on a survey of 120 adults in a city, the average number of hours each person works for pay each week is 42, with a margin of error of 1.2 hours. If the adult population of the city is 13,800, how many hours do the adults in the city work in an average week? Choose the best description of the average.

A) exactly 4830 hours
B) between 4692 hours and 4968 hours
C) exactly 579,600 hours
D) between 563,040 hours and 596,160 hours

Answers

Answer: Your answer would be D.

Step-by-step explanation:

The answer is, D) between 563,040 hours and 596,160 hours.

If each shape is completed to make a rectangular prism, what will be the total number of unit cubes in each rectangular prism? Drag and drop the total number of unit cubes that will be in each rectangular prism after it is completed.

Answers

Answer:

Red (top left)- 12 unit cubes

Blue (top right)- 15 unit cubes

Black (bottom left)-20 unit cubes

Green (bottom right)-10 unit cubes

Step-by-step explanation:

4*3=12

5*3=15

5*4=20

5*2=10

PLEASE MARK BRAINLIEST! THANKS SO MUCH!

You buy a new DVD for $14.95 plus 6% sales tax.How much will you pay?
A.$15.84
B.$1584
C.$15.85
D.$1.585

Answers

The answer will be C. $15.85

C.$15.85 hope this helps

Find the surface area of the rectangular prism.

Answers

Answer:

Step-by-step explanation:

Answer:

the answer is 48Ft

PLS SOMEONE WITH A REAL AWNSER HELP ME WITH THIS QUESTION!

Answers

Answer: 0.8 seconds

Step-by-step explanation:

It will take 0.8 seconds

pleaseee help me ASAP pleaseeee im begging you!!!

Answers

I don’t know I’m so sorry

I don’t know. I will try to get back to you soon! When is this due?

Answer pleaseeeeeeee

Answers

Answer: B

Step-by-step explanation:

Let's do each equation to find which has the value of 128. A is 2 to the power of 7 means you multiply 2, 7 times, so 2 times 2 is 4, 4 x 2 = 8, 8 x 2, 16, 16 x 2 = 32, 32 x 2 = 48, and 48 x 2 is 96, so answer A is incorrect. B is 2 times 4 to the power of 3 so 4 x 4 is 16 and 16 x 4 is 64, since I have to multiply that number by 2, I get a total of 128. Well that's the answer so the others are incorrect ( A, C, and D). Hopefully this helps :)

The bottom one 2^4x2^5 is the answer

THIS IS THE LAST QUESTION I SWEAR I'LL GIVE BRAINLIEST

Answers

Answer:

1 1/3 :)

Step-by-step explanation:

5 x 4 = 20 so you do the same to the other side, so 1/3 x 4/1 = 4/3 or 1 1/3

1 1/3 I think or something else

Find the area of the figure.

Answers

The area of the figure is 36

Answer: Area = 21

* FYI, you can use triangle area calculators to solve for it*

Step-by-step explanation:

Area = 1/2 base x height

Step 1: Solve each triangle separately

Triangle A = 6 x 5 = 30 divide by 2 = 15Triangle B = 3 x 4 = 12 divided by 2 = 6

Step 2: Add total Areas

Area = 15 + 6Area = 21

Please help with this!!

Answers

Answer:
D. 167

because the mean of 138, 139, 146, 154, 156, *167* = 150

and Martin needs to bowl at least a 150 to advance to the next round.

Hope this helps! Please vote me brainliest if you found my answer helpful! :)

the answer to your math problem is D

Find the measure of side XY.
Polygon ABCD with sides AB, unmarked, BC 12, CD 10, and DA 13 marked similar to Polygon WXYZ, with sides marked WX 24, XY, m, ZY 15.

12.5
15.0
18.0
8.0

Answers

Answer: I think the answer is 18.0 for m

Step-by-step explanation:

I can't really explain it but I hope it works

the third one / c - measure of side CY is 18.0

Order the rational numbers from least to greatest:
HELP

Answers

Answer:

-10, -0.5, 5/16, 2

Step-by-step explanation:

It would be
-10, -0.5, 5/16, 2

what is the total cost of $6.50 if you include 4.5% sales tax and a 20% tip?

Answers

Answer:

8.15

Step-by-step explanation:

$8.09 full price. 4.5 percent in sales tax would make the price up to 6.79 and adding the 20% tip which is 1.30 in total make $8.09

Use the expression 3+u/2+8w. Which part of the expression represents a quotient? Describe its parts.

The part of the expression that represents a quotient is?

Answers

Expression given: 3 + u/2 + 8w

There are three terms in the expression.

3 is the first term, u/2 is the second term, and 8w, aka 8 · w

The part of the expression that represents a quotient is u/2

I hope this helps you :D

Ms. Tanaka drove 252 miles on 12 gallons of gas. If she continues driving at the same rate, how far can Ms. Tanaka drive on 16 gallons of gas?

Answers

Answer: 336 miles

Step-by-step explanation: The reason I know is that I divided 252 by 12 and got 21 and multiplied 21 by 16 and got 336

the answer is 336miles.

PLEASE HELP THIS IS URGENT

A survey has different versions they. Are labeled A,B,C and they come in three colors purple, green, and brown. How many different tests can be created based on form number and color?

A. 9
B. 12
C. 24
D. 8

Answers

Answer:

answer is 24 or 9

Step-by-step explanation:

i think the answer is either 24 or 9 not sure y but i think its 24 or 9

I believe it to be 9 because there is A purple, A green, A brown and so on. Since there is 3 colors and 3 letters you just take 3x3. Hope that helps

Im so confused on thisss. Please help :))

Answers

Answer: 3

Step-by-step explanation:

6/2=3 | 3*2=6

9/3= 3 | 3*3=9

15/5=15 | 5*3=15

Answer:3

Step-by-step explanat

A brick manufacturer checks 1 out of every 100 bricks for cracks. Out of 900 bricks checked today, 3 had cracks. How many cracked bricks should the manufacturer expect out of 10,000 bricks?

Thank you in advance!! :)

Answers

Answer:

Step-by-step explanation:

11.1111

33/34 bricks will be cracked

Complete the table for the given rule.

Answers

Answer:

y=2,

y=3,

y=4

Step-by-step explanation:

when x=4:

y = 1/4 * 4 + 1 = 4/4 + 1 = 2

when x=8:

y = 1/4 * 8 + 1 = 8/4 + 1 = 3

when x=12:

y = 1/4 * 12 + 1 = 12/4 + 1 = 4

2,3,4. apply it to when x is different

explanation please

The scatter plot shows the relationship between the amount of time, in hours, students in a Spanish class slept the night before an exam and their score on the exam.
Which of the following describes the pattern of association for the scatter plot?

There is a positive linear association.
There is a positive nonlinear association.
There is a negative linear association.
There is a negative nonlinear association.

Answers

Answer: Positive Nonlinear Association

Step-by-step explanation:

Take a look at the graph. From what we can see, it is going up. Hence, it's positive (meaning C and D are not the answer).

The way to tell between linear and nonlinear is the line. If you can perfectly fit all the points on a straight line, then it is linear. Clearly, you can't fit all the points on a singular straight line here, so it is nonlinear.

I need help ASAP! I am offering brainiest to whoever answers the question first!

Answers

Answer:

Step-by-step explanation:

Answer: 3.75

Step-by-step explanation:

Add 6+5+0+1+1+10+7

The sum of those numbers should be 30!

We then calculate the amount of numbers in the equation, in this case it is 8.

So too answer it will be 30/8

Which is 3.75!

Solve this system of equations using the substitution method.
Please help! Thank you! (,,•﹏•,,)

Answers

y=-3x-9(eq 1)
y=-4x-13(eq 2)
Substitute eq1 into eq 2
3x-9=4x-13
Collect like terms
13-9=4x-3x
4=x
X=4
y=3x-9
y=3(4)-9
y=12-9
y=3

please help me below

Answers

Answer: 75 m²

Step-by-step explanation:

Using the scale given, we will convert the scale drawing measurements to the real backyard measurements.

4 cm = 5 m

12 cm / 4 cm = 3, 3 * 5 m = 15 m

Next, we will solve for the area using the given formula and multiplying.

A = LW

A = (15 m)(5 m)

A = 75 m²

The correct one is 75

PLSSS help, i will give brainliest!!!

Answers

Answer:

Answer A

Step-by-step explanation:

180° = 84° + (x + 46)°

(x + 46)°= 180° - 84°

x = 180° - 84° - 46° = 50°

(2x + 31)° = 131°

which means the next angle to it equals 180° - 131° = 49°

and as we know if we add up a triangle's angles it equals 180°

so the last unknown one is 180° - 84° - 49° = 47°

then a° = 180° - 47° = 133°

Answer:

A) 133°

Step-by-step explanation:

First, we solve for x.

84+x+46=180

130+x=180

x=50

Now, we plug that into 2x+31

2(50)+31=131

Then, 180-131 gives us an interior angle of 49.

Now we have two interior angles and can solve for the third.

180-84-49=47

Then we can find a by subtracting that from 180

180-47=133

Hey could i get help with this one?

Answers

Answer:85%

Step-by-step explanation:

The answer will be 85%

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