Amanda's book bag is 0.10. Some of Amanda's pens are removed and replaced with pink pens. Her book bag still contains a total of 20 pens. If the probability of choosing a pink pen is close to 1, how many pink pens would you expect to see in Amanda's bag?

Answers

Answer 1

Answer:

The number of pink pens can be 19 .

Step-by-step explanation:

Total Number of pens = 20

Let x be the number of pink pens

We are supposed to find If the probability of choosing a pink pen is close to 1, how many pink pens would you expect to see in Amanda's bag

Probability of choosing a pink pen = [tex]\frac{\text{Number of pink pens}}{\text{Total Number of pens}}[/tex]

Probability of choosing a pink pen =[tex]\frac{x}{20}[/tex]

ATQ

[tex]\frac{x}{20}[/tex]≈1

x≈20

So, the number of pink pens can be 19 .


Related Questions

1. f(x) = 3x - 2 for D = (-3, 1, 5}
Plzzz help plzzz help plzz help

Answers

Answer:

Step-by-step explanation:

3(-3) - 2 = -9 - 2 = -11

3(1) - 2 = 3 - 2 = 1

3(5) - 1 = 15 - 1 = 14

3 times Marie’s age is equal to 50 plz show work

Answers

Answer:

m = 16 2/3

Step-by-step explanation:

Let m = maries age

3m = 50

Divide by 3

3m/3 = 50/3

m = 16 2/3

Answer:

Marie's age is 16.7 years

Step-by-step explanation:

3 times Marie's age is equal to 50, so you divide 50 by 3.

50 ÷ 3 = 16.6666666 repeating, round it to 16.7

Marie's age is 16.7 years.

Check: 3 x 16.7 = 50.1 so you round it to 50.

Hope this helps!

-Jerc

I need help.........,

Answers

Answer:

Step-by-step explanation:

p=15-4

p= 11

Find the slope of the line passing through the points (3,7) and (3,-5).

Answers

Answer:

I believe the slope of the line passing through the points is x= -3

Para recortar algumas figuras geométricas, um aluno utilizou uma cartolina com 1mx0,8m. Sabendo que ele recortou 2 triângulos, ambos com 20cm de base e 30 cm de altura, 2 trapézios ambos com bases de 10cm e 20cm e altura de 7cm. Determine em cm² quanto foi a área da cartolina que sobrou. * 1 ponto 7595cm² 0,7595m² 7190cm² 0.719m²

Answers

Answer:

7190 cm²

Step-by-step explanation:

Para recortar algumas figuras geométricas, um aluno utilizou uma cartolina de 1 m x 0,8m.

Passo 1

Determine a área de todo o papelão

= Temos dimensões = 1mx0,8m

Área = Comprimento × Largura

= 0,8m²

Nós convertemos para cm²

1 m² = 10.000 cm²

0,8m² = x cm²

Multiplicação cruzada

0,8m² × 10.000 cm² / 1 m²

= 8000 cm²

Passo 2

Sabendo que recortou 2 triângulos, ambos com 20cm de base e 30cm de altura

Encontramos a área de um triângulo

= 1/2 × base × altura

= 1/2 × 20 × 30

= 300cm²

Ele cortou 2 triângulos Portanto, o são dos dois triângulos = 300cm² × 2

= 600cm²

etapa 3

Ele também cortou 2 trapézios ambos com bases de 10cm e 20cm e altura de 7cm.

A área de um trapézio =

1/2 (a + b) h

= 1/2 (10cm + 20cm) × 7cm

= 1/2 × 30 × 7

= 105 cm²

Ele cortou dois trapézios, portanto

A área dos dois trapézios do corte = 105cm² × 2

= 210 cm²

Passo 4

A área total do papelão que foi cortado = 600cm² + 210cm²

= 810 cm²

Etapa 5

Determine em cm² quanto de papelão sobrou.

Isso é calculado como:

Área total do papelão - Área total que foi cortada

= 8000 cm² - 810 cm²

= 7190 cm²

Identify the domain and range of the function below.

Domain

Range

Answers

Answer:sry

Step-by-step explanation:

Kaylee bought 4 chicken wings for $8. What was the cost of the wings in dollars per wing?

Answers

Answer:

2$

Step-by-step explanation:

2 x 4 = 8

hope this helps

Answer:

The answer to this question is that: each wing was $2

Step-by-step explanation:

The reason for this is because, you take the amount that she paid and divided that by the amount of wings that she bought.

show that any positive odd integers is of the form 4q+1 or 4q+3, where q is some integers.​

Answers

Answer:

Step-by-step explanation:

If a = 15 and c. 25 what is the length of leg b of a right triangle using the
pythagorean theorem?

Answers

Answer:

b=20

Step-by-step explanation:

[tex]b ^{2} + {a}^{2} = {c}^{2} \ \\ {b}^{2} = {c}^{2} - {a}^{2} \\ {b}^{2} = {25}^{2} - {15}^{2} = 625 - 225 = 400 \\ b = \sqrt{400} = 20[/tex]

Given : In a triangle ABC , a = 15 , c = 25 . Also the triangle is a right angled triangle .

To Find : The value of b using the Pythagoras Theorem.

Solution : The value of side a is 15 , c is 25 and we have to find b . The sides with be Pythagorean Triplet whose smallest member will be 15 . So the third member. will be 20 . And the largest member is 25 .

The Pythagoras Theorem is :

[tex]\boxed{\red{\bf hypontenuse^2=base^2+perpendicular^2}}[/tex]

⇒ c² = a² + b² .

⇒ b² = c² - a² .

⇒ b² = ( c + a ) ( c - a ) .

⇒ b² = ( 25 + 15 ) ( 25 - 15 ) .

⇒ b² = 40 × 10.

⇒ b² = 400.

⇒ b² = √400.

b = 20 .

Hence the value of c is 20 .

plz help me thank you :)
Gemma makes a conjecture that the sum of an odd integer and itself is always an even integer. Which choice is the best proof of her conjecture?
A) Look at these different examples: 7 + 7 = 14, 13 + 13 = 26, 23 + 23 = 46. So the sum of an odd number and itself must be even
B) Let 2n + 1 be an odd number; (2n + 1) + (2n + 1) = 4n + 2. Because 4(n + 2) is divisible by 2, the sum of 2n + 1 and itself is even.
C) Let n represent an odd number, and let n + n be an even number. Therefore, n + n = n + n, which shows that the sum of an odd number and itself is even.
D) Every time you add an odd number and itself, the sum is an even number.Every time you add an odd number and itself, the sum is an even number.

Answers

Answer:

top right

Step-by-step explanation:

i guessed and it was right

What percent is equivalent to 14/25?

Answers

Answer:

56%

Step-by-step explanation:

Answer:

56%

Step-by-step explanation:

[tex]\frac{14}{25} = \frac{56}{100}[/tex]   15/100 = 56%

I hope this helps!

helppp someone!!! i’ll mark brainliest!!!

Answers

Answer:

I think the answer is A. since the exponents inside the equation are negative, and the outside exponents are positive

Step-by-step explanation:

2) If 20 workers can build a house in 45 days, how many more workers are needed
to complete it in 30 days?
А
6
B
15
С
10
D
18

Answers

It’s D 18 if wrong I’m sorry but I took this test as well

Answer:

B

Step-by-step explanation:

100^(3-4x)/(2x+1) is less than or equal to 0.01^(5x-8)/(2x+1)

Answers

Answer:

domain: 2x+1 not equal to zero, then x not equal to -1/2

Set 2x+1>0

then x>-1/2

100^(3-4x)/(2x+1)<=0.01^(5x-8)/(2x+1)

100^(3-4x)<=0.01^(5x-8)

(10^2)^(3-4x)<=[10^(-2)]^(5x-8)

10^[2*(3-4x)]<=10^[(-2)*(5x-8)]

10^(6-8x)<=10^(16-10x)

6-8x<=16-10x

2x<=10

x<=5

combine x>-1/2 and x<=5

then - 1/2<x<=5

Set 2x+1<0

then x<-1/2

100^(3-4x)/(2x+1)<=0.01^(5x-8)/(2x+1)

100^(3-4x)>=0.01^(5x-8)

(10^2)^(3-4x)>=[10^(-2)]^(5x-8)

10^[2*(3-4x)]>=10^[(-2)*(5x-8)]

10^(6-8x)>=10^(16-10x)

6-8x>=16-10x

2x>=10

x>=5

combine x<-1/2 and x>=5

, then x does not exist while 2x+1<0

so answer is - 1/2<x<=5

Can someone answer the question please.
Identify the vocabulary word that matches the picture. ​

Answers

There is no picture

Help me plz plz plz

Answers

Answer:

root 1

Step-by-step explanation:

The value of root 1 to any power is equal to 1.

Answer:

A

Step-by-step explanation:

10/10 = 1

Hope this helps! <3

Does anyone know the answer? It’s due in an hour PLEASE HELPPP!!

Answers

When i did that sort of thing i had a trick. But you are correct.

If f(x) = 10x + 3 what is the value of x when f(x) =19

Answers

Answer:

x =  1/ 10 y +  −3 /10

Step-by-step explanation:

Let's solve for x.

y = 10x + 3

Step 1: Flip the equation.

10x + 3 = y

Step 2: Add -3 to both sides.

10x + 3 + −3 = y + −3

10x = y −3

Step 3: Divide both sides by 10.

10/10x  =  y −3/ 10

x =  1 /10 y +  −3 /10

Therefore the answer is

x =  1/ 10 y +  −3 /10

Please Mark Brainliest

Hope This Helps!

18.08 x 1.3 + 2.12 then multiply the answer by 2.12
then add the 2 answers
i will give brainliest

Answers

Answer:

79.94688

Step-by-step explanation:

find the value of each power 1. 3 to the power of negative 3 2. 4 to the power of 4

Answers

Answer:

1. 1/3

2. 256

Step-by-step explanation:

3/3/3 is .133333 (3's are repeated)

4*4*4*4 is 256

Need some help plzzzz

Answers

2x is the slope;
it goes up 2 over 1 making it 2/1x

if X = 5 then 3( 2X - 4) - X

Answers

Answer:

13

Step-by-step explanation:

Answer:

well if you're looking for the answer, it is: 13

Step-by-step explanation:

Which point lies on the graph of the function shown below y=-x^2+5x-3

A.(1,4)
B.(0,3)
C.(2,3)
D.(-2,2)

Answers

Answer:

C: (2,3)

Step-by-step explanation:

to solve this algebraically just plug in the x and y values of the points and see if they are true, but here is the graph to juse show you

7-5(x+6)= -7x-17 what value of x makes the equation true?​

Answers

Answer:

x=3

Step-by-step explanation:

7-5(x+6)= -7x-17

Distribute

7 - 5x-30 = -7x-17

Combine like terms

-5x-23= -7x-17

Add 7x to each side

-5x-23+7x= -7x-17+7x

2x -23 = -17

Add 23 to each side

2x-23+23 = -17+23

2x= 6

Divide by 2

2x/2 = 6/2

x =3

Answer:

x = 3

Step-by-step explanation:

7 - 5(x + 6) = -7x - 17

~Simplify left side

7 - 5x - 30 = -7x - 17

~Combine like terms

-5x - 23 = -7x - 17

~Add 23 to both sides

-5x = -7x + 6

~Add 7x to both sides

2x = 6

~Divide 2 to both sides

x = 3

Best of Luck!

determine which postulate or theorem can be used to prove that

Answers

answer should be a. asa hopefully this helps :)

Answer:

ASA

Step-by-step explanation:

if 1 mile is 5280 feet, and it is 2 miles from Ellie's house to the school, about how many feet is it from ellie's house to the school?

Answers

This is a conversion problem. We know that 1 mile is 5280 feet, right? Since Ellie lives 2 miles, and two is double of 1, we just take 5280 and multiply that by two (or add it twice) to find how many feet is between Ellie's house and school. 5280 x 2 = 10560 (you get the same answer if you add 5280 twice). Therefore, 10560 feet lies between Ellie's house and school.

solve question please​

Answers

Answer:

12, 160, 380

Step-by-step explanation:

Answer:

all of them are perfect square numbers since they can all be divided by four.

8. An average worker in Brazil can produce an
ounce of soybeans in 20 minutes and an ounce
of coffee in 60 minutes, while an average worker
in Peru can produce an ounce of soybeans in
50 minutes and an ounce of coffee in 75 minutes.
a. Who has the absolute advantage in coffee?
Explain.
b. Who has the comparative advantage in cof-
fee? Explain
c. If the two countries specialize and trade
with each other, who will import coffee?
Explain.
d. Assume that the two countries trade and that
the country importing coffee trades 2 ounces
of soybeans for 1 ounce of coffee. Explain why
both countries will benefit from this trade.

Answers

Answer:

A answer is Brazil.. Is correct

what is true of BLOOD cells​

Answers

Answer:

Your blood carries oxygen and nutrients to all of the cells in your body. Blood cells also fight infection and control bleeding. Most blood cells are made in your bone marrow. They are constantly being made and replaced.

Step-by-step explanation:

Hope this helps!

Brainliest please.

Answer: It carries oxygen. Red blood cells also remove carbon dioxide from your body, transporting it to the lungs for you to exhale. Red blood cells are made in the bone marrow. They typically live for about 120 days, and then they die.

Maki gave the cashier $50 to pay for 3 necklaces. The cashier gave her $4.25 in change. If each necklace cost the same amount, what is the cost in dollars and cents for each necklace?

Answers

Answer:

15.25

Step-by-step explanation

We can make an equation based on the data. 3x + 4.25 = 50

3x = 45.75

x = 15.25

Answer:

15.25

Step-by-step explanation:

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