document.write( "Question 938063: A trader bought some paraffin for $500. He paid $x for each litre of paraffin.\r
\n" ); document.write( "\n" ); document.write( "a) Find, in terms of x, an expression for the number of litres he bought.\r
\n" ); document.write( "\n" ); document.write( "Answer: (500/x)l of paraffin\r
\n" ); document.write( "\n" ); document.write( "b) Due to a leak, he lost 3 litres of paraffin. He sold the remainder of the paraffin for $1 per litre more than he paid for it. Write down and expression, in terms of x, for the sum of money he received.
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Algebra.Com's Answer #571478 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
The trader bought \"+500%2Fx+\" liters of paraffin
\n" ); document.write( "He lost \"+3+\" liters, so he now has
\n" ); document.write( "\"+500%2Fx+-+3+\" liters
\n" ); document.write( "---------------------
\n" ); document.write( "He originally paid \"+x+\" dollars / liter
\n" ); document.write( "He sold for \"+x%2B+1+\" dollars / liter
\n" ); document.write( "He received:
\n" ); document.write( "\"+%28+500%2Fx+-+3+%29%2A%28+x+%2B+1+%29+\"
\n" ); document.write( "\"+500+-+3x+%2B+500%2Fx+-+3+\"
\n" ); document.write( "\"+500%2Fx+-+3x+%2B+497+\"
\n" ); document.write( "------------------------
\n" ); document.write( "check:
\n" ); document.write( "suppose \"+x+=+2+\" dollars
\n" ); document.write( "He bought \"+500%2F2+=+250+\" liters
\n" ); document.write( "He lost \"+3+\" liters and has \"+247+\" liters left
\n" ); document.write( "He sold for \"+3+\" dollars/liter
\n" ); document.write( "\"+247%2A3+=+741+\" dollars received
\n" ); document.write( "and
\n" ); document.write( "\"+500%2Fx+-+3x+%2B+497+\"
\n" ); document.write( "\"+500%2F2+-+3%2A2+%2B+497+\"
\n" ); document.write( "\"+250+-+6+%2B+497+=+741+\"
\n" ); document.write( "OK
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