131k views
1 vote
Can someone please help me!?

Can someone please help me!?-example-1
Can someone please help me!?-example-1
Can someone please help me!?-example-2
User Volox
by
8.5k points

2 Answers

6 votes
Since you're not returning the marble, there is one less to choose from in the second draw.

First draw: 5/10 (five out of 10 are red)
Second draw: 4/9 (four out of 9).

First AND second draw: 5/10*4/9 = 20/90 = 2/9, answer B.

Second question: the only possibility is to pick a red tulip, so that's a certainty! Answer A.
User Franky
by
7.6k points
2 votes
I'm not so sure about the first one but I think it's B
and for the second it would be certain because all of the tulips are red.
User Codiak
by
8.6k points

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