document.write( "Question 678678: One day Tom buys an electric drill when the shop offers a 20% discount. The next day jake buys and identical drill but the discount is then 25%. If tom paid $4 more than Jake,what was the orginal price of the drill? \n" ); document.write( "

Algebra.Com's Answer #421581 by josmiceli(19441) $\"\"$ $\"About$

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Let $\"+x+\"$ = the original price of the drill
\n" ); document.write( "given:
\n" ); document.write( " $\"+x+-+.2x+=+x+-+.25x+%2B+4+\"$
\n" ); document.write( " $\"+.8x+=+.75x+%2B+4+\"$
\n" ); document.write( " $\"+.05x+=+4+\"$
\n" ); document.write( " $\"+x+=+4%2F.05+\"$
\n" ); document.write( " $\"+x+=+80+\"$
\n" ); document.write( "The original pice was $80
\n" ); document.write( "check:
\n" ); document.write( " $\"+x+-+.2x+=+x+-+.25x+%2B+4+\"$
\n" ); document.write( " $\"+80+-+.2%2A80+=+80+-+.25%2A80+%2B+4+\"$
\n" ); document.write( " $\"+80+-+16+=+80+-+20+%2B+4+\"$
\n" ); document.write( " $\"+64+=+64+\"$
\n" ); document.write( "OK
\n" ); document.write( " \n" ); document.write( "

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