document.write( "Question 252404: An instrument store gives a 10% discount to all students off the original cost of an instrument. During a back to school sale an additional 15% is taken off the discounted price. Julie , a student at the local high school, purchases a flute for $306. How much dit it originally cost? \n" ); document.write( "
Algebra.Com's Answer #184285 by drk(1908)\"\" \"About 
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Let the original price be P.
\n" ); document.write( "10% off means 90% left, so we get .9P
\n" ); document.write( "additional 15% off means 85% left, so we get .9(.85)P = .765P
\n" ); document.write( "THis is equal to $306, so we get
\n" ); document.write( ".765P = 306
\n" ); document.write( "P = $400.
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