A bag had 3 pink marbles and 4 purple marbles find the probability of selecting 3 pink marbles without replacement

Answers

Answer 1

Answer: There are 7 marbles in the bag.
The probability of drawing a pink one is (3/7) .

Then you have 1 pink one, and there are 6 marbles in the bag.
The probability of drawing a pink one is (2/6) .

Then you have 2 pink ones, and there are 5 marbles in the bag.
The probability of drawing a pink one is (1/5) .

The probability of all 3 draws being successful is

(3/7) (2/6) (1/5) = 6/210 = 1/35 = about 2.86% (rounded)

Related Questions

Find the value of x to the nearest tenth.х34°48
I really need help please I need it right now show your work please
Work the following pricing problems for services rendered. (Round to tenths.)Labor rate = $8.00 per hour Labor time = 6 hours Retail price of parts = $0 Total job cost = $86.00 Overhead rate?
Which equation represents a proportional relationship that has a constant of proportionality equal to 1/5?y = x - 1/5 y = x + 1/5 y = 1/5x y = 5x
A computer company uses the function f(h) = 50h + 75 to calculate the total repair bill, f(h), for h number of hours worked. Find h if f(h) = $275. 13,825 hours 13,750 hours 4 hours 2 hours

Can there be more than one point of intersection between the graphs of two linear equations? Explain

Answers

the only way that 2 lines can intersect more than 1 time is if they are the same line, then they intersect infinitely
if they are differnet lines, then they can only intersect 1 time at max

A four-sided shape with the top side labeled as 10.2 cm. The height is labeled 5 cm. A portion of the base from the perpendicular to a vertex is labeled 4 cm. The portion of the base from the perpendicular to the right vertex is 6.2 cm.What is the area of the figure?

25.5 cm2
45.5 cm2
51 cm2
56.1 cm2

Answers

The area of the figure is 51 cm².

Given that,

A four-sided figure with the top side labeled as 10.2 cm.

The height is labeled 5 cm.

This shape is a trapezium.

Total length of the base = 6.2 + 4 = 10.2 cm

Area of the figure = 10.2 × 5 = 51 cm²

Hence the required area of the figure is 51 cm².

Learn more about Area here :

brainly.com/question/29266824

#SPJ1

Suppose the population of a town is 15,200 and is growing 2% each year. Write an equation to model the population growth. Predict the population after 10 years

Answers

1. So the current population of the town is 15 200 and is growing per year with 2%.
Find the population number after 10 years.
First, let’s find the value of 2% in decimal form
=> 2/100
=> 0.02

Now, let’s try to solve
Population = 15 200 ( 1 + (0.02 x 10) )
Population = 15 200 ( 1 + 0.2 )
Population = 15 200 + 3040
Population = 18 240
Thus, in 10 years, the town’s population will increase to 18 240.

Answer:

The equation model is P = Po * e^rt

The population after 10 years = 18, 559 (most approximately)

Step-by-step explanation:

We use formula to find the population growth.

P = Po * e^rt

Where P is the total population after t years

Po is the initial population

r = rate of growth

t = time

e = 2.71 [Euler number]

The equation model is P = Po * e^rt

Now to find the population after 10 years, we have to plug in the given values in the formula.

Given:

Po = 15, 200, r = 2% = 2/100 = 0.02, and t = 10 years

P = 15,200*e^0.02(10)

P = 15,200*2.71^0.2

P = 15,200 *1.221

P = 18, 559

Therefore, the population after 10 years = 18, 559 (most approximately)

In a dilation, the ratio of the length of a side on the image to the length of its corresponding side on the pre-image is called the___ ___A) Center of dilation
B) Scale factor
C) Expansion or contraction
D) Mapping rule

Plssss help im stuck on this and correct only please for brainliest

Answers

it B i took the pre test

Help. please. i beg.

Answers

Answer:

Step-by-step explanation:

Answer: 80

Step-by-step explanation: Maybe research supplementary angle rules?

To change .3 to a fraction you must put 3 over what denominator? A. 100
B. .1
C. 10
D. 1

Answers

its C 3/10 =.3

There u go

C.10 When there is 1 digit after the decimal it is over 10, 2 =digits over 100, etc. how ever many digits equals how many zeros

Other Questions

Which multiplication has a negative answer?A) (-1)(-1) B) (-1)(-1)(-1)(-1) C) (-1)(-1)(-1)(-1)(-1) D) (-1)(-1)(-1)(0)

If 1/5 of cakes where fruit and reminder was sponge what's the reminder in %

Use the distributive property to write an expression that is equivalent to 8(a+4)

Bc reflects about a line such that N is the reflection of B and O is the reflection of C. Point N is shown on the coordinate plane, but point O is not. What will the coordinates of point O be?