document.write( "Question 360091: Thirty percent of twice a number is 30. What was the original number? \n" ); document.write( "
Algebra.Com's Answer #256936 by Theo(13342)\"\" \"About 
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x = number\r
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\n" ); document.write( "\n" ); document.write( "2*x = twice the number\r
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\n" ); document.write( "\n" ); document.write( ".3*2*x = 30% of it.\r
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\n" ); document.write( "\n" ); document.write( ".3*2*x = 30\r
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\n" ); document.write( "\n" ); document.write( "simplify to .6*x = 30\r
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\n" ); document.write( "\n" ); document.write( "divide both sides by .6 to get x = 30/.6 = 50\r
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\n" ); document.write( "\n" ); document.write( "confirm by substituting in original equation.\r
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\n" ); document.write( "\n" ); document.write( "2*50 = 100\r
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\n" ); document.write( "\n" ); document.write( "100*.3 = 30\r
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\n" ); document.write( "\n" ); document.write( "answer is confirmed.
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