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Mathematics 8 Online
OpenStudy (lovelyanna):

Which situation requires the multiplication counting principle? A. How many ways can you choose a piece of fruit when there are 6 apples, 4 oranges, and 5 pears in the fruit bin? B. How many ways can you choose a hat when you have 3 baseball caps, 2 berets, and 3 straw hats in your closet? C. How many ways can you choose an outfit to wear when you have 3 shirts, 2 jackets, and 4 pairs of pants in your closet? D. How many ways can you choose a bagel when there are 4 plain, 3 blueberry, and 5 poppy seed bagels on the tray?

OpenStudy (lovelyanna):

@whpalmer4

OpenStudy (lovelyanna):

I think D, not sure though.

OpenStudy (lovelyanna):

Please help @sourwing

OpenStudy (anonymous):

It is A? what do you think?

OpenStudy (lovelyanna):

I said I think it's D, but not sure. Why A?

OpenStudy (anonymous):

I'm asking you. Why is it not A?

OpenStudy (lovelyanna):

Idk... I'm a terrible explainor, but A, B and C seem to be used in the same way

OpenStudy (anonymous):

Answer is C. Why?

OpenStudy (lovelyanna):

It is? D uses different kind of things while A, B, C use same kind of thing. I think... idk >,<

OpenStudy (lovelyanna):

Explanation, please?

OpenStudy (anonymous):

It isn't D because it's asking for how many ways you can choose a bagel. All of them are bagels so you added, not multiplying

OpenStudy (lovelyanna):

I see... why is it C? explanation for that? :P

OpenStudy (anonymous):

It's C because you picking one in each type of clothes. So by the principle of counting, the total possible outfit is 3x2x4

OpenStudy (lovelyanna):

What about A, and B? Isn't it the same way as C?

OpenStudy (anonymous):

no A is a particular fruit. Not a particular *combination* of fruit. You don't choose one fruit of each type. Same thing with B

OpenStudy (lovelyanna):

Alright, so your certain that it's C?

OpenStudy (anonymous):

how about try to convince yourself that's it's C.

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