document.write( "Question 935585: With 47 gallons of fuel in its tank, the airplane has a weight of 2186.7pounds. What is the weight of the plane with 77gallons of fuel in its tank? \n" ); document.write( "
Algebra.Com's Answer #568828 by josgarithmetic(39620)\"\" \"About 
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What is the density or specific gravity of the fuel? Call the density D in units of pounds_per_gallon; the increase from 47 to 77 gallons is \"%2877-47%29=30\" gallons of fuel. The plane is now gross weight of \"%282186.7%2B30%2AD%29%2Apounds\". \n" ); document.write( "
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