document.write( "Question 617688: Please help me solve: How much fuel that sells for $.85 per gallon should be added to 13 gallons of fuel that sells for $1.75 per gallon to obtain a mixture that sells for $1.50 per gallon?\r
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Algebra.Com's Answer #388488 by lwsshak3(11628)\"\" \"About 
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Please help me solve: How much fuel that sells for $.85 per gallon should be added to 13 gallons of fuel that sells for $1.75 per gallon to obtain a mixture that sells for $1.50 per gallon?
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\n" ); document.write( "let x=gallons of $.85 fuel to be added.
\n" ); document.write( "13+x=gallons of mixture
\n" ); document.write( ".85x+1.75*13=1.50(13+x)
\n" ); document.write( ".85x+22.75=19.50+1.5x
\n" ); document.write( ".65x=3.25
\n" ); document.write( "x=3.25/.65=5
\n" ); document.write( "gallons of $.85 fuel to be added=5\r
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