document.write( "Question 138543: Problem-Solving Strategy: Make A Table\r
\n" ); document.write( "\n" ); document.write( "Paul wants to buy a stereo system. The store allows a 15% discount if the purchase is paid for within 30 days. A 20% discount is given if the purchase is paid for within 10 days. If Paul pays $400 at the time of purchase, what was the original price of the stereo system? \n" ); document.write( "

Algebra.Com's Answer #101118 by vleith(2983) $\"\"$ $\"About$

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Since Paul paid at the time of purchase, he got the 20% discount.\r
\n" ); document.write( "\n" ); document.write( "He paid 400.\r
\n" ); document.write( "\n" ); document.write( " $\"400+=+FullPrice+-+Discount\"$
\n" ); document.write( " $\"400+=+Fullprice+-+0.20%2AFullPrice\"$
\n" ); document.write( " $\"400+=+0.8%2A+FullPrice\"$
\n" ); document.write( " $\"400%2F0.8+=+FullPrice\"$
\n" ); document.write( " $\"500+=+FullPrice\"$ \n" ); document.write( "

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