document.write( "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?
\n" ); document.write( "Thank you so much!
\n" ); document.write( "Renee Bridgman (this time I entered the correct email server!)\r
\n" ); document.write( "\n" ); document.write( "William's wallet contains three $1 bills, four
\n" ); document.write( "$5 bills, and two $10 bills. If William chooses
\n" ); document.write( "two bills at random, what is the probability of
\n" ); document.write( "selecting a $1 bill and then a $10 bill?
\n" ); document.write( "A. 2/27
\n" ); document.write( "B. 1/12
\n" ); document.write( "C. 7/12
\n" ); document.write( "D. 5/6
\n" ); document.write( "

Algebra.Com's Answer #438911 by MathLover1(20849)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "You have:\r
\n" ); document.write( "\n" ); document.write( " \"3\" $\"1\" bills, \r
\n" ); document.write( "\n" ); document.write( "\"4\" $\"5\" bills, and \r
\n" ); document.write( "\n" ); document.write( "\"2\" $\"10\" bills \r
\n" ); document.write( "\n" ); document.write( " if you select a bill at random, without replacing the bill, you choose a second bill at random \r
\n" ); document.write( "\n" ); document.write( "first find \"p\" of $\"1\" bill, then $\"10\"\r
\n" ); document.write( "\n" ); document.write( "there are \"9\" bills in total, and \"3\" of which are $\"1\", the probability of choosing a $\"1\" first is \"p=3%2F9\" or \"p=1%2F3\"\r
\n" ); document.write( "\n" ); document.write( "so, \"1%2F3\" of the times you try you will select a $\"1\" \"first\"\r
\n" ); document.write( "\n" ); document.write( "if you select a $\"1\" first and don't replace it, there are \"8\" bills left to select second, \"2\" of which are $\"10\" \r
\n" ); document.write( "\n" ); document.write( "so \"2%2F8=1%2F4\" of those times when you selected a $\"1\" first, you will select a $\"10\" second\r
\n" ); document.write( "\n" ); document.write( "finally, you will select a $\"10\" bill second \"1%2F4\" of the \"1%2F3\"
\n" ); document.write( "of the times when you select a ten first. So the desired probability is\r
\n" ); document.write( "\n" ); document.write( "\"1%2F3%2A1%2F4+=+1%2F12\".......so, your answer is \"B\"
\n" ); document.write( "
\n" ); document.write( "
\n" );