document.write( "Question 186519: A dress boutique was trying to sell a formal dress that no one seemed to want. The dress was first marked down by 20% off the original price, but no one bought it. Next, it was marked down 25% more off the first sale price, but still no one would buy it. Finally, it was offered for 30% off the second sale price, and someone purchased it for $63. What was the original price of the dress?
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Algebra.Com's Answer #139773 by jojo14344(1513) $\"\"$ $\"About$

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\n" ); document.write( "Let $\"x\"$ = Original Price
\n" ); document.write( "1st mark down= 20% off:
\n" ); document.write( " $\"x-0.20x=0.80x\"$
\n" ); document.write( "2nd mark down=25% off the 1st sale price of $\"0.80x\"$ :
\n" ); document.write( " $\"0.80x-0.25%280.80x%29=0.80x-0.20x=0.60x\"$
\n" ); document.write( "3rd mark down=30% off the 2nd sale price of $\"0.60x\"$ :
\n" ); document.write( " $\"0.60x-0.30%280.60x%29=0.60x-0.18x=0.42x\"$
\n" ); document.write( ".
\n" ); document.write( "We equate the final mark down to the purchase price of $63.00:
\n" ); document.write( " $\"0.42x=63\"$ -----> $\"cross%280.42%29x%2Fcross%280.42%29=cross%2863%29150%2Fcross%280.42%29\"$
\n" ); document.write( " $\"highlight%28x=150%29\"$ , ORIGINAL PRICE
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\n" ); document.write( "Let's Check,
\n" ); document.write( "1st mark down: $\"150-0.20%28150%29=150-30=120\"$
\n" ); document.write( "2nd mark down: $\"120-0.25%28120%29=120-30=90\"$
\n" ); document.write( "3rd mark down: $\"90-0.30%2890%29=90-27\"$ =$63.00 Purchase Price
\n" ); document.write( "Thank you,
\n" ); document.write( "Jojo \n" ); document.write( "

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