document.write( "Question 252978: an airplane flew for 4.23 hours with a 25.5km/h tail wind. the return flight against the same tail wind took 4.97 hours. find the speed of the plane in still air. \n" ); document.write( "
Algebra.Com's Answer #185171 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
rt=d
\n" ); document.write( "(x+25.5)*4.23=(x-25.5)*4.97
\n" ); document.write( "x= airplane in still air
\n" ); document.write( "x=317.027 kmh
\n" ); document.write( "Nothing difficult here
\n" ); document.write( "No square roots nor quadratic formulas
\n" ); document.write( "Just multiply, divide, add and subtract numbers
\n" ); document.write( "Just remember you want x on the left and all numbers on the right side.
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