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Mathematics 13 Online
OpenStudy (anonymous):

A bag contains 7 blue, 5 purple, 12 red and 6 orange marbles. Find the probability, if you draw one marble at random from the bag. Select the simplest form.

OpenStudy (alyssa_xo):

How many marbles are there in total?

OpenStudy (anonymous):

30

OpenStudy (alyssa_xo):

So whats the probability of grabbing 1 marble out of 30? (The answer is in a fraction)

OpenStudy (alyssa_xo):

I basically told you the answer lol

OpenStudy (anonymous):

LOL ohhh thanks haha

OpenStudy (alyssa_xo):

Lol so whats the answer?

OpenStudy (alyssa_xo):

Jaquis...

OpenStudy (alyssa_xo):

JAQUIS

OpenStudy (anonymous):

omg http://prntscr.com/4yukhb

OpenStudy (alyssa_xo):

wow, you forgot to add the (P not blue) part..

OpenStudy (anonymous):

i know ;-;

OpenStudy (anonymous):

just noticed XD

OpenStudy (alyssa_xo):

<333

OpenStudy (anonymous):

omg same here, thts why i got confused lol

OpenStudy (anonymous):

<333

OpenStudy (mandre):

So what you need would be the probability of picking a marble which is not blue? That would be (5+12+6) / (7+5+12+6) = 23/30, right?

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