SOLUTION: help me solve this please? Science and medicine. A plane flies 720 mi against a steady 30-mi/h headwind and then returns to the same point with the wind. If the entire trip tak

Algebra ->  Algebra  -> Customizable Word Problem Solvers  -> Travel -> SOLUTION: help me solve this please? Science and medicine. A plane flies 720 mi against a steady 30-mi/h headwind and then returns to the same point with the wind. If the entire trip tak      Log On

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 Click here to see ALL problems on Travel Word Problems Question 76773: help me solve this please? Science and medicine. A plane flies 720 mi against a steady 30-mi/h headwind and then returns to the same point with the wind. If the entire trip takes 10 h, what is the plane’s speed in still air?Answer by checkley75(3666)   (Show Source): You can put this solution on YOUR website!DISTANCE=RATE*TIME SEEING AS THESE DISTANCES ARE THE SAME WE HAVE THE EQUATION (720-30)X=(720+30)(10-X) 690X=750(10-X) 690X=7500-750X 690X+750X=7500 1440X=7500 X=7500/1440 X=5.208 HOURS FOR THE FIRST TRIP & 10-5.208=4.792 FOR THE RETURN TRIP. PROOF 690*5.208=750*4.792 3594=3594