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Mathematics 19 Online
OpenStudy (anonymous):

PLS HELP ;( A bowl contains candies of the same size in three flavors: orange, strawberry, and pineapple. If the probability of randomly pulling out an orange candy is fraction 2 over 8, and the probability of randomly pulling out a strawberry candy is fraction 3 over 8, what is the probability of randomly pulling out a pineapple candy? fraction 3 over 8 fraction 4 over 8 fraction 5 over 8 fraction 6 over 8

OpenStudy (anonymous):

@dan815 @sammixboo

OpenStudy (anonymous):

@aaronq @zepdrix @TheSmartOne

OpenStudy (anonymous):

@Jaynator495 @starlord6200 @aaronq

OpenStudy (anonymous):

please help :(

zepdrix (zepdrix):

That picture is so creeeepy -_- But anyway, the problem :D Hmm let's see.

OpenStudy (anonymous):

xD

zepdrix (zepdrix):

Lemme ask you real quick, What are the odds of pulling out an `orange` or `strawberry` or `pineapple` candy?

OpenStudy (anonymous):

well orange is the 2/8 and strawberry is 3/8 but pineapple idk

zepdrix (zepdrix):

No no, I mean... So let's assume the person picking these candies doesn't have fat sausage fingers. He'll never FAIL to grab a candy when he reaches in ya? So the odds of getting one flavor or one of the other flavors is always 100% yes? He'll always grab a candy. That's what I mean by OR.

zepdrix (zepdrix):

So his odds of getting candy are 8 out of 8.

OpenStudy (anonymous):

oh hmm

zepdrix (zepdrix):

If you think of it in terms of fractions maybe it's a little easier. We need to end up with \(\Large\rm \frac{8}{8}\) with our three individual odds.

zepdrix (zepdrix):

So far we have \(\Large\rm \frac{2}{8}\) and \(\Large\rm \frac{3}{8}\)

OpenStudy (anonymous):

so then the pineapple would be 3/8

zepdrix (zepdrix):

Ah yes! Good job! \c:/

OpenStudy (anonymous):

xD ty I have more could you help with some?

OpenStudy (anonymous):

these dont seem as complicated but still mess with me

zepdrix (zepdrix):

Ya we can try >.<

OpenStudy (anonymous):

The figure below shows a shaded rectangular region inside a large rectangle: A rectangle of length 10 units and width 5 units is shown. Inside this rectangle is another rectangle of length 6 units and width 3 units placed symmetrically inside the larger rectangle. The smaller rectangle is shaded gray. What is the probability that a point chosen inside the large rectangle is not in the shaded region? 18% 36% 42% 64%

OpenStudy (anonymous):

420%%%%

OpenStudy (anonymous):

I will attach the photo

OpenStudy (anonymous):

OpenStudy (anonymous):

confusing? xD

zepdrix (zepdrix):

So when we talk about a point, we're talking about somewhere inside of that space. Do you remember how to find the amount of SPACE something takes up? We call that area.

OpenStudy (anonymous):

ya area i know what that is and the perimeter which im pretty sure were not worried about lol

zepdrix (zepdrix):

How much space does each rectangle take up? :) Gimme the areas.

OpenStudy (anonymous):

3 and 6 it says

zepdrix (zepdrix):

No, those are side lengths.

OpenStudy (anonymous):

the 5 and 10?

zepdrix (zepdrix):

No, those are the other side lengths...

OpenStudy (anonymous):

:?

zepdrix (zepdrix):

Do you remember how to calculate `area of a rectangle`?

OpenStudy (anonymous):

L*W right?

zepdrix (zepdrix):

yes :3 so what are the areas?

zepdrix (zepdrix):

crunch the numbers

OpenStudy (anonymous):

ohh ok 1 sec then xD

OpenStudy (anonymous):

18?

zepdrix (zepdrix):

Good, and the other one?

OpenStudy (anonymous):

50

zepdrix (zepdrix):

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zepdrix (zepdrix):

AHHH the colors got messed up :( UGH

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