document.write( "Question 1063613: A $480 TV was put on sale for 30% off. It didn't sell so the price was lowered an additional percent off the sale price making the new price $285.60. What was the second percent discount that was given? \n" ); document.write( "

Algebra.Com's Answer #678738 by Edwin McCravy(20060) $\"\"$ $\"About$

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A $480 TV was put on sale for 30% off.
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document.write( "That means after the first reduction the price was only\r\n" );
document.write( "100%-30% or 70% of the original price.\r\n" );
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document.write( "70% of $480 = 0.70×$480 = $336\r\n" );
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\n" ); document.write( "It didn't sell so the price was lowered an additional
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\n" ); document.write( "What was the second percent discount that was given?
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document.write( "Let the additional percent be x%\r\n" );
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document.write( "That means after the second reduction the price was only\r\n" );
document.write( "(100-x)% of the $336\r\n" );
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\n" ); document.write( "making the new price $285.60.
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document.write( "So the equation is:\r\n" );
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document.write( "(100-x)% of $336 = $285.60\r\n" );
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document.write( "Multiply both sides by 100\r\n" );
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document.write( "(100-x)×336 = 28560\r\n" );
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document.write( "100×336-336x = 28560\r\n" );
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document.write( "33600-336x = 28560\r\n" );
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document.write( "     -336x = -5040\r\n" );
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document.write( "         \r\n" );
document.write( "         %\r\n" );
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document.write( "Edwin

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