document.write( "Question 170900: Joe bought a used motorcycle for $600. He spent $54 fixing it. He advertised the bike for sale for 70% more than he paid originally. The bike didn't sell so he marked the price down 20%. The bike sold. How much money did Joe make?\r
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Algebra.Com's Answer #126193 by Mathtut(3670) $\"\"$ $\"About$

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Lets start out with a general equation calling the original price paid x....we know that x =600 dollars. 70%(.7) times x added to the original price x is the new price. x+.7x=1.7x. But Joe decided to mark this new price down 20%(.2) so we mark down the new price by 20% with this equation 1.7x(.2) is the mark down and we subtract this from the new price.
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\n" ); document.write( "so we have new price 1.7x and markdown 1.7x(.2).
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\n" ); document.write( "1.7x-1.7x(.2)=sales price (we will call this s).
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\n" ); document.write( "we know x=600 so plug in this value for x.
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\n" ); document.write( "1.7(600)-1.7(600)(.2)=s
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\n" ); document.write( "1020-204=s
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\n" ); document.write( "s=816
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\n" ); document.write( "now in order to get what Joe made on this we take s-(x)-(expenses)=profit(p)
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\n" ); document.write( "816-600-54=p
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\n" ); document.write( " $\"highlight%28p=162%29\"$ dollars profit \n" ); document.write( "

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