document.write( "Question 299971: from a deck of 10 cards that number 1-10, what are the chances of drawing 2 cards that equal 10. first you draw 1 card then put it back, shuffle and draw again..... \n" ); document.write( "

Algebra.Com's Answer #215356 by Fombitz(32388) $\"\"$ $\"About$

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There are 100 possible combinations of two card draws.
\n" ); document.write( "1 1
\n" ); document.write( "1 2
\n" ); document.write( "1 3
\n" ); document.write( "1 4
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\n" ); document.write( ".
\n" ); document.write( "10 7
\n" ); document.write( "10 8
\n" ); document.write( "10 9
\n" ); document.write( "10 10
\n" ); document.write( "Only 9 of them sum to 10.
\n" ); document.write( "1+9=10
\n" ); document.write( "2+8=10
\n" ); document.write( ".
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\n" ); document.write( "9+1=10
\n" ); document.write( "So the probability is 9/100. \n" ); document.write( "

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