document.write( "Question 401805: A Cessna 175 can average 130 mph. If a trip takes 2 hours one way and the return takes 1 hour and 15 minutes, find the wind speed, assuming it is constant.\r
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document.write( "This is an algebra equation. I don't even know where to begin. But I know that the wind speed would be x. I'm not quite sure if I need to add or subtract the two time differences. Thank you so much for helping me. \r
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document.write( "Melissa \n" );
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Algebra.Com's Answer #284338 by rfer(16322) ![]() You can put this solution on YOUR website! with the wind is x+y \n" ); document.write( "against the wind is x-y \n" ); document.write( "same distance both ways. \n" ); document.write( "2(x+y)=1.25(x-y) \n" ); document.write( "2x+2y=1.25x-1.25y \n" ); document.write( ".75x=3.25y \n" ); document.write( "x=4.33y \n" ); document.write( "-------- \n" ); document.write( "2(x+y)=130 \n" ); document.write( "replace x with 4.33y \n" ); document.write( "2(4.33y+y)=130 \n" ); document.write( "9.66y=130 \n" ); document.write( "y=14 mph wind \n" ); document.write( " |