document.write( "Question 995372: Flow baked 12 buttermilk pancakes, 15 blueberry pancakes . How many banana pancakes does she need to bake to have the odds of picking a banana pancake 1/10\r
\n" ); document.write( "\n" ); document.write( "I think the answer is three but I can't explain why
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Algebra.Com's Answer #614127 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
12+15 = 27 pancakes total so far\r
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\n" ); document.write( "\n" ); document.write( "Let x = number of banana pancakes\r
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\n" ); document.write( "\n" ); document.write( "x banana pancakes out of 27+x total gives the probability x/(27+x)\r
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\n" ); document.write( "\n" ); document.write( "we want this probability to be 1/10, so,\r
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\n" ); document.write( "\n" ); document.write( "x/(27+x) = 1/10
\n" ); document.write( "10*x = 1*(27+x)
\n" ); document.write( "10x = x+27
\n" ); document.write( "10x - x = 27
\n" ); document.write( "9x = 27
\n" ); document.write( "x = 27/9
\n" ); document.write( "x = 3\r
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\n" ); document.write( "\n" ); document.write( "You need 3 banana pancakes
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