Question

help please

Answer 1

@Hero

Answer 2

@Yinshy

Answer 3

well first what do you think???

Answer 4

process of elimination!

Answer 5

@princeevee what is the probability that a student chosen plays violin?

Answer 6

@princeevee, are you still here?

Answer 7

yeah, and 5

Answer 8

@princeevee, the answer to the question I asked must be in the form of a fraction.

Answer 9

4/15

Answer 10

Very good. And what is the probability that a student chosen plays the piano?

Answer 11

6/15

Answer 12

Awesome. So to find the probability that the student chosen plays the piano or the violin, simply add the fractions together and then reduce the fraction if necessary. Let us know what you get afterwards @princeevee

Answer 13

0.666

Answer 14

or 6/10

Answer 15

Interesting. I'm curious, did you add the fractions by hand or did you use a calculator? How did you end up with 0.6666? Do you know how to add fractions by hand?

Answer 16

Are you not able to add this by hand?

Answer 17

10/15 or 10/30 if were adding the denominator

Answer 18

The rule for adding fractions is

Answer 19

In other words, "Add the numerators, keep the denominator".

Answer 20

So @princeevee , how about it? What did you get as the correct result of your addition?

Answer 21

11/15?

Answer 22

Explain how you got 11. Did you add the numerators? The only reason why I posted the rule above is because you posted two answers initially. I did not say both were incorrect, but surely you must know that both answers could not be correct. At this point though, you're guessing. Simply use the rule and provide one correct result. Avoid resorting to posting answer choices.

Answer 23

closest to 10? i guess?

Answer 24

@princeevee I'm only looking for a fractional result of your addition. All I've simply asked you to do thus far is post the sum of 4/15 + 6/15.

Answer 25

You posted the correct result of the addition earlier which is 10/15. We do not add the denominators. What we look to do before we add the fractions is make sure the denominators are the same. The addition rule for fractions implies this. The next step is to reduce 10/15.

Answer 26

@princeevee do you know how to reduce the fraction 10/15?

Answer 27

so its either 3 or 5 as the denominator, so either c or d?

Answer 28

i swear if its what i told you what it was Hero im a go crazy

Answer 29

So to reduce the fraction, you must first break down the fraction to its prime factors then eliminate factors of one. Allow me to demonstrate. For example:

Answer 30

how did 10/15 turn into 12/16?

Answer 31

@Yinshy because you're not paying attention to what I posted.

Answer 32

It's an EXAMPLE of how to reduce a fraction

Answer 33

your right i just got here so you know

Answer 34

oh i thought that was the answer

Answer 35

geez

Answer 36

next time put EX: and then the example...

Answer 37

nvm you did

Answer 38

...

Answer 39

@princeevee I recommend that you go to http://www.ck12.org and drill yourself on adding and reducing fractions.

Answer 40

wait, so its C?

Answer 41

I really do not like multiple choice questions.

Answer 42

@yinshy, cease

Answer 43

:|

Answer 44

can i give an explanation?

Answer 45

Yes

Answer 46

ok

Answer 47

ima draw and do not delete it i swear

Answer 48

But it should be correct and no, you're not allowed to say things like "It's not C". That's akin to giving answers.

Answer 49

ok so if you simple fie

Answer 50

whats a number that can go into 10???

Answer 51

lowest number

Answer 52

2 right?

Answer 53

What kind of explanation is this? One that doesn't use the same numbers as the problem itself hopefully.

Answer 54

oh you want me to just give another example?

Answer 55

in that case im out because you already gave him an example

Answer 56

what about B?

Answer 57

ok ok ok try an simple fie 10 over 15

Answer 58

@princeevee is going to guess the entire alphabet

Answer 59

yeah i know and i aint going to be able to say a darn thing because he wont just work out some thing so simple

Answer 60

seems like D now

Answer 61

ima die soon

Answer 62

@princeevee whatever answer you choose, you have to be able to explain how you came up with that result.

Answer 63

10 /5 = 2 15 / 5 = 3

Answer 64

@Hero is that even really a explanation?

Answer 65

@Yinshy why are you arguing?

Answer 66

how am i?

Answer 67

so am i right?

Answer 68

You guessed all the answer choices. It's equivalent to marking A, B, C, & D as correct and asking "am I right?".

Answer 69

so you arent gonna give me the answer? i even explained why i think it was D

Answer 70

If you're going to choose D, you should be able to justify why A, B, and C are not correct.

Answer 71

why the heck to i need to do that?

Answer 72

Well, it's not punishment for guessing all four answer choices if that's what you're asking.

Answer 73

can you just say if i got it right? we've been on for hours

Answer 74

Can you try reducing 10/15 once more? Try using the method I posted above.

Answer 75

i got D again :/ 2/3

Answer 76

Correct.

Answer 77

The moral of the story is, avoid guessing on multiple choice questions.

Answer 78

i have 3 more questions......

Answer 79

and ok