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Two airplanes leave an airport at the same time and travel in opposite directions. One plane travels 87(km)/(h) slower than the other. If the two

Two airplanes leave an airport at the same time and travel in opposite directions. One plane travels 87(km)/(h) slower than the other. If the two planes are 11,417 kilometers apart after 7 hours, what is the rate of each plane?

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