An airplane travels 600 miles with the same wind in 2 hours; against the wind in 5 hours, and makes the return trip. Find the speed of the wind using the equation W15) 2(x + 4) = 4 - 4(x + 4) (using the elimination method, use a graphing calculator to check your answer: 16) x + 4y = -19 2x + Jy = -3) and graph the solution set: 17) 4 - Sx - 72 - 6x - [4 'piecewise function; find the specified function value.
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When the airplane travels with the wind, its effective speed is (x + y), and it takes 2 hours to travel 600 miles. So, we have the equation: 1) 2(x + y) = 600 When the airplane travels against the wind, its effective speed is (x - y), and it takes 5 hours to Show more…
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