document.write( "Question 843447: 128 is a number was increased by 15% what was its original number? \n" ); document.write( "
Algebra.Com's Answer #508096 by fcabanski(1391)\"\" \"About 
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Increased by 15% means multiply the number by (1 + 15/100).


\n" ); document.write( "Call the number x. x * (1 +.15) = 128


\n" ); document.write( "x + .15x = 1.15x = 128


\n" ); document.write( "x = 128/1.15 = 128/(115/100) = 128 * 100/115 = 12800/115 \n" ); document.write( "

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