document.write( "Question 279975: 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 did it originally cost? \n" ); document.write( "

Algebra.Com's Answer #203463 by josmiceli(19441) $\"\"$ $\"About$

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Let $\"x\"$ = original price
\n" ); document.write( "After the 1st discount, it cost
\n" ); document.write( " $\"x+-+.1x+=+.9x\"$
\n" ); document.write( "After the 2nd discount, it costs
\n" ); document.write( " $\".9x+-+.15%2A%28.9x%29+=+.9x+-+.135x\"$
\n" ); document.write( " $\".9x+-+.135x+=+.765x\"$
\n" ); document.write( " $\".765x+=+306\"$
\n" ); document.write( " $\"x+=+400\"$
\n" ); document.write( "The original cost was $400 \n" ); document.write( "

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