document.write( "Question 207362: The sales price of a car is $12,590, which is 20% off the original price. What is the original price?
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Algebra.Com's Answer #156800 by Edwin McCravy(20086) You can put this solution on YOUR website! The sales price of a car is $12,590, which is 20% off the original price. What is the original price?\r \n" ); document.write( "\n" ); document.write( " \r\n" ); document.write( "\r\n" ); document.write( "There are two ways to do this.\r\n" ); document.write( "\r\n" ); document.write( "First way:\r\n" ); document.write( "\r\n" ); document.write( "Original price - 20% of original price = 12590\r\n" ); document.write( "\r\n" ); document.write( " x - .2x = 12590\r\n" ); document.write( "\r\n" ); document.write( "Multiply thru by 10 to remove decimals:\r\n" ); document.write( "\r\n" ); document.write( " 10x - 2x = 125900\r\n" ); document.write( "\r\n" ); document.write( " 8x = 125900\r\n" ); document.write( " x = $15737.50\r\n" ); document.write( "\r\n" ); document.write( "---------------------------------------------------\r\n" ); document.write( "\r\n" ); document.write( "The other way. When you reduce something by 20% you\r\n" ); document.write( "leave 80% of it. So we think this way:\r\n" ); document.write( "\r\n" ); document.write( " 12590 is 80% of what?\r\n" ); document.write( "\r\n" ); document.write( " 12590 = .8x\r\n" ); document.write( "\r\n" ); document.write( " x = \n" ); document.write( " \n" ); document.write( " |