Posted by **sheryl** on Sunday, March 31, 2013 at 12:31am.

Gary has 10 coins in his pocket.

2 quarters

5 dimes

3 nickels

without looking, Gary pulls 1 coin from

his pocket and puts it on a table. Then,

he pulls one more coin from his pocket.

What is the probability that the first

coin is a dime and the second coin is a

nickle?

- math -
**Khaled**, Sunday, March 31, 2013 at 5:48am
At the beginning, he had 10 coins and drew one. For this one to be a dime, it has a probability of 5/10 (5 dimes out of 10 coins in total).

So p1=1/2

Then, after drawing that coin, he has 9 total coins in his pocket, then he drew one. For this coin to be a nickle, it has a probability of 3/9 (3 nickels out of 9 total coins).

So p2=1/3

Thus, p=p1*p2=(1/2)*(1/3)

Therefore, p=1/6

- math -
**Nigel**, Tuesday, March 24, 2015 at 10:59am
5/10=1/2

3/9=1/3

1/2*1/3=1/6✌️

- math -
**BOLAJI Oretan**, Saturday, November 28, 2015 at 6:30am
Pro(dime) = 5/10

Without replacement total left= 9

Thus prob(nickel) = 3/9

Therefore

Pro(dime&nickel)=(5/10)(3/9)= 1/6

## Answer This Question

## Related Questions

- Mah - Adam has 4 dimes, 4 quarters and 4 nickels in his pocket. He pulls out 2 ...
- math - can someone help explain how to do this? allen has nickels dimes and ...
- 6th grade math - We are learning probability and can you please check my answer...
- math - Gene has less 12 nickels,dimes,&quarters in his pocket.The probabilty of ...
- math - Gary has $1.56 in change in his pocket. if there is a total of 19 coins, ...
- Math - If Mike has 8 dimes and 6 pennies in his pocket. If he randomly selected ...
- algebra - How many coins When i dumped the change out of my pocket, I noticed ...
- Math - In Lloyd's pocket are 6 coins: 3 dimes, 2 nickels, and 1 penny. If Lloyd ...
- math - Corrine has 3 quarters, 7 dimes, 6 nickels, and 4 pennies in her pocket...
- math - in his left pocket ralph has 4 quarters and 5 nickels. in his right ...

More Related Questions