document.write( "Question 1098579: A dealer bought a used car for $12600, repaired it and sold it for $18000, thus making a profit of 25%. How much did he spend on repairs? \n" ); document.write( "
Algebra.Com's Answer #713048 by greenestamps(13200)\"\" \"About 
You can put this solution on YOUR website!

The solution by the other tutor is valid; but I would not go that way....

\n" ); document.write( "If the dealer made a 25% profit, then the selling price is 125% of his total cost:

\n" ); document.write( "\"18000+=+1.25x\"
\n" ); document.write( "\"14400+=+x\"

\n" ); document.write( "If his total cost was $14,400 and he paid $12,600 for the car, then the amount he spent on repairs was \"14400-12600+=+1800\"
\n" ); document.write( "
\n" );