Three marbles are picked from a bag containing three green marbles, eight blue marbles and nine red marbles without replacement. (a).Draw a probability tree showing the total possible outcomes.( b).what is the probability of picking : 1.three red marbles 2.one green and two blue marbles. 3.all three colours 4. not a green marble.

answer: ff

f

step-by-step explanation: f

ff

1. 3

2. 4

3. 1

hope this ! have a great day.

-wfz

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3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!