document.write( "Question 611231: A dealer has 10,000 gallons of unleaded gasoline. He wants to add just enough ethanol to make the fuel a 10% ethanol mixture. How many gallons of ethanol should be added? \n" ); document.write( "
Algebra.Com's Answer #384929 by ankor@dixie-net.com(22740)\"\" \"About 
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A dealer has 10,000 gallons of unleaded gasoline.
\n" ); document.write( " He wants to add just enough ethanol to make the fuel a 10% ethanol mixture.
\n" ); document.write( " How many gallons of ethanol should be added?
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\n" ); document.write( "Let x = amt of ethanol
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\n" ); document.write( "x = .10(x+10000)
\n" ); document.write( "x = .10x + 1000
\n" ); document.write( "x - .1x = 1000
\n" ); document.write( ".9x = 1000
\n" ); document.write( "x = 1000/.9
\n" ); document.write( "x = 1111.11 gal of ethanol required
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