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An airplane travels x = 4.50 x 10^2 km due east and then travels an unknown distance y due north. Finally, it returns to its starting point by traveling a distance of r = 525 km. How far did the airplane travel in the northerly direction? ANSWER: 2.7 x 10^2 km QUESTION: What is the answer if the distance traveled due east and the direct return distance are both doubled?

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