If a jelly bean machine contains 16 pink jelly beans, 34 blue jelly beans, 24 black jelly beans, and 26 purple jelly beans, what is the probability that a jelly bean chosen at random will be pink?

Answers

Answer 1

Answer: There are 16 pink jelly beans.
There are 16+34+24+26=100 jelly beans in total.

$P=(16)/(100)=16\% = (4 * 4)/(25 * 4)=(4)/(25)$

The probability is 4/25, or 16%.

Answer 2

Answer:

4/25

Step-by-step explanation:

The answer is 4/25

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Find the volume of a sphere with a circumference of 48 pi ft. Write your answer in terms of pi .

Answers

Answer:

18,432 pi cubic ft

Step-by-step explanation:

This problem can be solved using formula to find circumference and volume of sphere

for any sphere with radius r

circumference of sphere is 2* pi * r

volume of sphere is found by using formula 4/3*(pi*r^2)

Given circumference of sphere is 48 pi ft

therefore

2* pi * r = 48 pi ft

r = 48 pi ft/ 2* pi = 24 ft

substituting the value of r is formula of volume of sphere we have

volume of sphere is = 4/3*(pi*24^3) = 18,432 pi cubic ft

Tomas learned that the product of the polynomials (a + b)(a2 – ab + b2) was a special pattern that would result in a sum of cubes, a3 + b3. His teacher put four products on the board and asked the class to identify which product would result in a sum of cubes if a = 2x and b = 1.Which product should Tomas choose?

A) (2x + 1)(2x2 + 2x – 1)
B) (2x + 1)(4x3 + 2x – 1)
C) (2x + 1)(4x2 – 2x + 1)
D) (2x + 1)(2x2 – 2x + 1)

Answers

General form: a^3 + b^3 = (a + b) (a^2 -ab +b^2)

Now replace with a= 2x, b = 1

(2x)^3 + 1^3 = (2x + 1) [ (2x)^2 -(2x)(1) + 1^2) = (2x + 1) (4x^2 - 2x + 1)

Therefore, the answer is the option C)

(a+b)(a²-ab+b²)
(2x+1)((2x)²-(2x)(1)+1²)
(2x+1)(4x²-2x+1)

C is answer

How do I write -2.5 into a fraction?

Answers

Do u have a 100 dollar calculator if so press math enter enter

Answer:

$-(25)/(10)$

Step-by-step explanation:

What is the time that is 9 hours and 40 minutes before 4:25am

Answers

6:45pm. because from 4 to 12 would be 4 hours then subtract 5 more hours leaves you at 7:25 pm. now subtract 45 from that which leaves you at 6:45 pm.

Preparation for the homecoming football game, members of the student body are painting the spirit rock in front of the school. If Angela works alone, it will take her five and a half hours. If Brandon works alone, it will take him 7 hours. If they work together, it will take them approximately hours ?

Answers

The time required when Angela and Brandon work together, for the preparation for the homecoming football game, is 3.08 hours.

What is the relation between work and time?

The total time taken is inversely proportional to the rate of work. If a unit of workis done in total n number of days, then the total work done in a day can is,

$W_1=(1)/(n)$

In preparation for the homecoming football game, members of the student body are painting the spirit rock in front of the school.

If Angela works alone, it will take her five and a half hours. The work done by Angela in one hour is,

$A=(1)/(5.5)\nA=(2)/(11)$

If Brandon works alone, it will take him 7 hours. The work done by Brandon in one hour is,

$B=(1)/(7)$

The work done in one hour, when the work together,

$A+B=(2)/(11)+(1)/(7)\nA+B=(14+11)/(77)\nA+B=(25)/(77)\nA+B=(1)/(3.08)$

Thus, the time required when Angela and Brandon work together, for the preparation for the homecoming football game, is 3.08 hours.

Learn more about the work and time here;

brainly.com/question/25572872

Answer:

3.08 hours

Step-by-step explanation:

Preparation for the homecoming football game, members of the student body are painting the spirit rock in front of the school.

If Angela works alone, it will take her five and a half hours.

If Brandon works alone, it will take him 7 hours. If they work together, it will take them approximately hours ?

This is calculated as:

The Number of hours they worked together = T

1/5.5 + 1/7 = 1/T

= 7 + 5.5/(5.5)(7)

= 12.5/38.5

1/T = 12.5/38.5

Cross Multiply

12.5T = 38.5

T = 38.5/12.5

T = 3.08 hours

What is one-fourth of four sevenths

Answers

The one-fourth of four sevenths is $(1)/(7)$ .

Given that,

The fraction is one-fourth of four sevenths.
We need to solve it.

Based on the above information, the calculation is as follows:

$= (1)/(4) * (4)/(7)\n\n= (4)/(28) \n\n= (1)/(7)$

Therefore, we can conclude that The one-fourth of four sevenths is $(1)/(7)$ .

Learn more: brainly.com/question/6201432

1/4 x 4/7
do the top numbers first. 1 x 4 is 4do bottom numbers next 4 x 7 is 28

that leaves you with 4/28. But you have to reduce.

4/28 = 2/14 = 1/7 (notice I just cut both the top and bottom numbers in half each time I reduced until I couldn't reduce any more).
So, final answer is 1/7

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