document.write( "Question 166202: a plane which can fly 520mph in still air flies for 3 hours against a wind and for 2 hours with the same wind. The total distance it covers is 2565 miles. find rate of the wind. \n" ); document.write( "
Algebra.Com's Answer #122495 by Mathtut(3670)![]() ![]() ![]() You can put this solution on YOUR website! lets call s the rate of the plane which is 520mph d=2565\r \n" ); document.write( "\n" ); document.write( "now with the formula distance(d)=rate*time or d=rt lets break this trip down into 2 segments. We will call the speed of the wind w.\r \n" ); document.write( "\n" ); document.write( "d=(s-w)3+(s+w)2---->2565=(520-w)3+(520+w)2--->2565=1560-3w+1040+2w \r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "so the rate of the wind \n" ); document.write( " \n" ); document.write( " |