In a classroom of 20 students, 70% of them have brown eyes. If a teacher picks two students at random to pass out supplies, what is the probability he chooses two students without brown eyes?​

Answers

Answer 1

Answer:

6/20 can I get brainliest pleast

Step-by-step explanation:

[tex] \frac{70}{100} \times 20 = 14 \\ 20 - 14 = 6 \\ [/tex]

there is a chance that the teacher will pick a student without brown eyes 6/20 times


Related Questions

Sherly's Plumbing and Howard's Plumbing have different
ways of charging their customers.
Sherly's Plumbing charges $43 per hour plus a $30 initial
fee.
Howard's Plumbing charges $28 per hour plus a $24
initial fee.
Make a function that represents each person, then find
the cost, f(7), for each person.
Your answer: Not there yet, keep working
Question
Answer
Linear Function for Sherly:
s =
Linear Function for Howard:
Sherly $(7) =
Howard $(7) =

Answers

Answer:

Sherly's Plumbing is : f(x) = 43x + 30 and Howard's Plumbing is f(x) = 28x + 24

sherly's f(7) = 331 and Howard's f(7) = 220

What is the prime factorazation of 50

Answers

Answer:

Prime factorization of 50 is 2 x 5 x 5 or 2 x 5^2

Step-by-step explanation:

there are between 24 and 40 students in a class. The ratio is 4:7, how many students are there

Answers

Answer:

28:35 = 4:7

Step-by-step explanation:

Hope that helped!

Answer:

33 students

Step-by-step explanation:

4 + 7 = 11

8 + 14 = 22

12 + 21 = 33

hope this helps!

Follow the directions to solve the system of equations by elimination. 8x + 7y = 39 4x – 14y = –68 Multiply the first equation to enable the elimination of the y-term. Add the equations to eliminate the y-terms. Solve the new equation for the x-value. Substitute the x-value back into either original equation to find the y-value. Check the solution. The solution to the system of equations is (, ).

Answers

Answer:

1/2,5

Step-by-step explanation:

Answer:

1/2     5

Step-by-step explanation:

just got it right on edge

PLEASE HELP, THANK YOU (-:

Answers

Answer:

1 mile per hour

Step-by-step explanation:

Is 14x+16x-4=5(4x+9)x=49 a solutionn or problem?

Answers

Answer:

its a problem there is still work to be done with it

Step-by-step explanation:

Kennedy had the expression 3(2x-3x+8). She simplified and rewrote the
expression 3(8+x). If any, what was her error?

Answers

Answer:

It is -3x+24

Step-by-step explanation:

2x-3x is -x or -1x

It can also be simplified further using multiplication.

3(2x-3x+8)

3(-x+8)

-3x+24

What is f(5) for the function f(x)= 2x+4?

f(5)=?

Answers

Answer:

5=2x+4

5-4=2x

1=2x

x=1/2

Answer:

if f(x)=2x+4

Then f(5)=2•5+4=14

The answer is 14

The sample space below shows the results the final eight matches played by the English soccer team
Manchester United during their championship 2012 - 2013 season. They won matches where they
scored more goals than their opponent, lost matches where they scored less, and tied matches where they
scored the same amount.
If we take matches 1, 3, 5, 6, and 8 as a subset of the sample space, which of the statements below
describe this subset?

Answers

b. the subset consists of all the matches where there were no ties

and

d. The subset consists of all the matches where manchester united won or lost

I would post the picture of me getting it right if I could, if you want to trust me go ahead. success awaits ig lol

The correct statements are:

The subset consists of all the matches where there was a tie.The subset consists of all the matches where Manchester United's opponent did not lose.

What is Data?

In mathematics, data is a collection of facts and figures that can take any shape, whether it be numerical or not. You can calculate numerical data, which is always gathered in number form and includes things like student test results, employee salaries, football team member heights, etc.

Given:

From the table we can see that

As,  the subset consists of all the matches where there was tie in matches 3, 5 and 8.

and, The subset consists of all the matches where Manchester United's opponent did not  lose.

Learn more about Data here:

https://brainly.com/question/10980404

#SPJ2

Find the slope of: A(-2,-4), B(2, 4) *

Answers

M=y2-y1/x2-x1
4-(-4)/2-(2)
8/4
M=2

Answer:

2/1

Step-by-step explanation:

Follow the formula: (y2 - y1) / (x2 - x1). So 4-(-4) and 2-(-2). A negative and a negative equal a positive so 8/4. Then simplify. Which gives you 2/1. Hope this helps.

{(2,0), (4, -3), (6, 9), (-2,7), (4,9)}
What is the range?
um...? idk

Answers

Answer:

(8,9)

Step-by-step explanation:

The biggest number minus the smallest number.

The answer is (8,9) ok

11 Karl takes a ride in a taxi and is charged $2.75 for the first of a mile. He is charged $0.25 for each
additional to
of a mile traveled and gives the driver a $3.50 tip. Explain how to determine the number of
miles that Karl can ride in the taxicab for a total of $28.50 including the tip. Show your work.


I WILL GIVE HIGH POINTS JUST PLEASE HELP SOON.

Answers

Answer: 89 miles


Explanation: We can make a linear equation given the problem, where 2.75 is the constant and 0.25 is the slope. M can represent miles 28.5 is what we want the equation to equal, so it will be on one side of the equation.

We can simply add the $3.50 tip to the constant to account for it

Thus we have 28.50=0.25m+6.25.

Solving for m gives us 89 miles.



Please help its geometry :( no one answer my question​

Answers

I think the answer would be 30 or 20 try that

Liliana is renting a beach house for a family vacation. The house charges a $75 cleaning fee plus $95 per night. If Liliana wants to spend a maximum of $645 on the rental, which inequality represents “n,” the number of nights can she afford to rent the beach house?
A.n ≤ 6
B. n ≥ 6
C. n 5

Answers

Answer:

A.n ≤ 6

Step-by-step explanation:

A. n ≤ 6

May I have brainliest please? :)

i need help with this please mathematics

Answers

i dont see anything

can someone help me with this?

Answers

R: -4,-3
S: -3,1
T: 1,-2
U: stays the same
((:

Gwen scans a photo that is 4 in. wide by 6 in. tall into her computer. If she scales the
height down to 3 in., how wide should the similar photo be?

Answers

Answer: 2 inches in width

Step-by-step explanation:

4 - 6

divide both by 2

2 - 3

The width of a similar photo comes to be 2 inches.

Width of original photo = 4 inches

Height of the original photo = 6 inches

Height of the scaled photo = 3 inches

What is the scale factor?

A scale factor is a number that multiplies (“scales”) a quantity.

Scale factor = height of scaled photo/ height of the original photo

Scale factor= 3/6 = 1/2

So, the width of the scaled photo = scale factor * width of the original photo

The width of the scaled photo = (1/2)*4

The width of the scaled photo =2 inches.

Therefore, the width of a similar photo comes to be 2 inches.

To get more about scaling visit:

https://brainly.com/question/25722260

please show work
A car travels 110 miles in 2 hours (with a constant speed. How much time will it take traveling 484 miles?

Answers

Answer:

8.8 hours or 528 minutes

Step-by-step explanation:

110 miles in 2 hours

divide both by 2

55 miles in 1 hour

484/55 = 8.8 hours

If you need it in minutes there are 60 minutes in an hour so multiply 8.8 by 60

8.8*60=528 minutes

1) Arnold has $200 in his bank account. His bank
account earns interest at a rate of 2% each year.
After 15 years, how much money will Arnold have
in his bank account (assuming no withdrawals or
deposits)?

Answers

Answer:

P is the principal amount, $200.00.

r is the interest rate, 2% per year, or in decimal form, 2/100=0.02.

t is the time involved, 15....year(s) time periods.

So, t is 15....year time periods.

To find the simple interest, we multiply 200 × 0.02 × 15 to get that:

The interest is: $60.00

Select all diagrams that show 4 x 1/3

Answers

Answer:

b

d

Step-by-step explanation:

Question 1
factor x^2 +8x +15
A. (x+5)(x+3)
B. (x+5)(x-3)
C. (X-5)(x-3)

Answers

The answer is A (x+5)(x+3)

explanation:
the GCF of 15 is 3 and 5
3 and 5 also add up to 8 making each of the number the zeros

(x+5)(x+3)

Can someone help me with this

Answers

Answer:

C

Step-by-step explanation:

I checked it and it’s right hope this helps!!

Jaxon is deciding between two landscaping companies for his place of business. Company A charges $45 per hour and a $150 equipment fee. Company B charges $35 per hour and a $200 equipment fee. Let AA represent the amount Company A would charge for tt hours of landscaping, and let BB represent the amount Company B would charge for tt hours of landscaping. Write an equation for each situation, in terms of t,t, and determine the interval of hours, t,t, for which Company A is cheaper than Company B.

Answers

Answer:

When the number of hours t is less than 5 hours, Company A is cheaper than Company B

Step-by-step explanation:

Let the number of hours be represented by t

For Company A

Company A charges $45 per hour and a $150 equipment fee.

150 + 45t

For Company B

Company B charges $35 per hour and a $200 equipment fee.

200 + 35t

Write an equation for each situation, in terms of t,t, and determine

The interval of hours,t, for which Company A is cheaper than Company B is given as:

Company A < Company B

Hence:

150 + 45t < 200 + 35t

Collecting like terms

45t - 35t < 200 - 150

10t < 50

t< 50/10

t < 5

When the number of hours t is less than 5 hours, Company A is cheaper than Company B

Answer:

This is the correct answer on Delta Math

Step-by-step explanation:

15 is 60% of what number?

Answers

Answer:

25

Step-by-step explanation:

Answer: 25

Step-by-step explanation:

60 percent (calculated percentage %) of what number equals 15? Answer: 25.

Simplify the expression.
- 7 + 3 - 14 + 2

Answers

Answer:

-4 - 16

Step-by-step explanation:

Answer:

-16

Step-by-step explanation:

you just use a calculator lol :)

PLEASE ANSWER FAST ITS FOR A BIG TEST!!! Find an expression which represents the difference when (−6x+5) is subtracted from (−x−8) in simplest terms. ILL GIVE BRAINLIEST

Answers

Answer:

5x-13

Step-by-step explanation:

HELP! HELP! I never learned to count to ten, so I’ll just count to five and then. 1, 2, 3, 4, 5 outside, and then I’ll go and count/look again!

Answers

Answer:

6,7 8, 9,10

Step-by-step explanation:

those are the numbers after 5 in order

Answer:

6,7,8,9,10

six,seven,eight,nine,ten

Step-by-step explanation:

Hope this helps!!

chess club with 30 members is electing a new president. Yolanda received 27 votes. What percentage of the club members voted for Yolanda?

Answers

the answer is 90%, because 27/30 in percentage form is 90%.

Answer:

Step-by-step explanation:

90% of the chess club!

✨Hope it helps✨

✨Brainliest?

The diagram below shows a map of the routes taken by Georgia Air-Taxi airline. On this diagram lengths and directions are irrelevant, all that matters is the connections between airports. Choose the adjacency matrix, name it A, that matches the scenario.

Answers

Answer: B

Step-by-step explanation: Adjacency Matrix is a square matrix representing a simple graph with 0 or 1 according to the condition given.

In this diagram, 0 corresponds to no connection between airports and 1 corresponds to connections between airports.

In other words, analysing the image, we see that:

1) Albany just have connection with Atlanta, so in the position of line Albany with column At, it must be a 1. The other columns, there are 0.

The Line for Albany in the matrix will be: [0 1 0 0 0 0]

2) Atlanta has connections with Albany, Dalton, Macon and Augusta. So corresponding position (line and column) must be 1. The only two airports Atlanta doesn't have connection with its own and Waycross, so at the corresponding column and line, it is written 0.

The line for Atlanta in the matrix is [1 0 1 1 1 0]

3) Augusta: connections with Atlanta, Macon, Waycross. At those positions, it will be written 1. At positions related to itself, Albany and Dalton is 0.

The line in the matrix will be [0 1 0 0 1 1]

4) Dalton: connection with Atlanta only. That position will be 1 while the others will be 0.

The line is [0 1 0 0 0 0]

5) Macon: connections with Atlanta, Augusta and Waycon: those positions will have 1 and the other 0.

The line is [0 1 1 0 0 1]

6) Waycross: connections with Macon and Augusta. Those positions will be 1 and the others 0.

The line is [0 0 1 0 1 0]

In conclusion, the adjacency matrix matching the scenario is

[tex]A=\left[\begin{array}{cccccc}0&1&0&0&0&0\\1&0&1&1&1&0\\0&1&0&0&1&1\\0&1&0&0&0&0\\0&1&1&0&0&1\\0&0&1&0&1&0\end{array}\right][/tex]

A city Carnival has an entry fee of $15. Each Carnival ride cost $7.50. Write a Linear Equation that can be used to solve for total spend at the Carnival. In the form y = mx + b

Answers

The answer would be Y=7.50x+15
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