document.write( "Question 369440: (N,V,S,A,N,T,A,R,A )
\n" ); document.write( "DIAGRAM 1
\n" ); document.write( "Base the diagram,some of the card label Y are put in a box.If a card is picked at random, probability of pickeing a Y card is 0.2, calculate the Y cards.
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Algebra.Com's Answer #263337 by Fombitz(32388)\"\" \"About 
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\"P%28Y%29=0.2\"
\n" ); document.write( "Let Y be the number of Y cards added to the box.
\n" ); document.write( "There were 9 cards to start with in the box.
\n" ); document.write( "\"P%28Y%29=Y%2F%28Y%2B9%29=2%2F10\"
\n" ); document.write( "\"10Y=2%28Y%2B9%29\"
\n" ); document.write( "\"10Y=2Y%2B18\"
\n" ); document.write( "\"8Y=18\"
\n" ); document.write( "Since \"8\" is not a factor of \"18\", there is no integer answer.
\n" ); document.write( "\"Y\" must be an integer.
\n" ); document.write( "Please check the problem setup.\r
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