Question 714630: I'm so sorry. I just sent you a question and gave you the wrong email address. I am a tutor, trying to get help for a student who needs to solve this problem. Can you please help?
Thank you so much!
Renee Bridgman (this time I entered the correct email server!)
William's wallet contains three $1 bills, four
$5 bills, and two $10 bills. If William chooses
two bills at random, what is the probability of
selecting a $1 bill and then a $10 bill?
A. 2/27
B. 1/12
C. 7/12
D. 5/6
Answer by MathLover1(20850)   (Show Source):
You can put this solution on YOUR website!
You have:
 $ bills,
 $ bills, and
 $ bills
if you select a bill at random, without replacing the bill, you choose a second bill at random
first find  of $ bill, then $
there are  bills in total, and of which are $, the probability of choosing a $ first is  or 
so,  of the times you try you will select a $ 
if you select a $ first and don't replace it, there are  bills left to select second, of which are $
so  of those times when you selected a $ first, you will select a $ second
finally, you will select a $ bill second  of the
of the times when you select a ten first. So the desired probability is
 .......so, your answer is 
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