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mylen [45]
3 years ago
8

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?
Mathematics
2 answers:
Thepotemich [5.8K]3 years ago
8 0
There are 16 pink jelly beans.
There are 16+34+24+26=100 jelly beans in total.

P=\frac{16}{100}=16\% = \frac{4 \times 4}{25 \times 4}=\frac{4}{25}

The probability is 4/25, or 16%.
Inessa05 [86]3 years ago
7 0

Answer: the answer is 6/25. Apex

Step-by-step explanation:

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Why is 6/11=x/33 not a proportion
sertanlavr [38]

6/11=x/33 is not a proportion because they aren't equal to each other.

6 0
3 years ago
Prove that under root 2 is a irrational number​
torisob [31]

Answer:

Let's suppose √2 is a rational number. Then we can write it √2  = a/b where a, b are whole numbers, b not zero.

We additionally assume that this a/b is simplified to lowest terms, since that can obviously be done with any fraction. Notice that in order for a/b to be in simplest terms, both of a and b cannot be even. One or both must be odd. Otherwise, we could simplify a/b further.

From the equality √2  = a/b it follows that 2 = a2/b2,  or  a2 = 2 · b2.  So the square of a is an even number since it is two times something.

From this we know that a itself is also an even number. Why? Because it can't be odd; if a itself was odd, then a · a would be odd too. Odd number times odd number is always odd. Check it if you don't believe me!

Okay, if a itself is an even number, then a is 2 times some other whole number. In symbols, a = 2k where k is this other number. We don't need to know what k is; it won't matter. Soon comes the contradiction.

If we substitute a = 2k into the original equation 2 = a2/b2, this is what we get:

2=(2k)2/b22=4k2/b22*b2=4k2b2=2k2

This means that b2 is even, from which follows again that b itself is even. And that is a contradiction!!!

WHY is that a contradiction? Because we started the whole process assuming that a/b was simplified to lowest terms, and now it turns out that a and b both would be even. We ended at a contradiction; thus our original assumption (that √2 is rational) is not correct. Therefore √2 cannot be rational.

(I copied this from the internet, but hope it helps!)

4 0
3 years ago
Read 2 more answers
Under her cell phone plan, Morgan pays a flat cost of $54 per month and $5 per gigabyte, or part of a gigabyte. (For example, if
Bogdan [553]

Answer: She can use 4 gigabyte while remaining in her budget.

Step-by-step explanation:

You would first subtract 54  from 70 which leaves you with 16,

Then you would divide 16 by 4 to find how many gigabytes she could use which gives you 4

So she can use 4 gigabyte while remaining in her budget.

Learn  more about basic mathematics operations here

brainly.com/question/28493322

#SPJ9

7 0
2 years ago
Read 2 more answers
Find three consecutive even integers such that the square of the third is 60 more that the square of the second
lana [24]

Answer:

-4,4,16

Step-by-step explanation:

They are all even integers.

-4^2=16

4^2=16

16^2=256

the square of the third,16 is 256 which is more than the square of the second,4=16

4 0
3 years ago
- 2y + 7y + 4<br> Can someone help
sladkih [1.3K]
Hi !
the answer is 5y+4

please let me know if im wrong (:
6 0
3 years ago
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