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OpenStudy (anonymous):
two planes left an airport at noon. one flew south and the other flew north at twice the speed. After 3 hours, the planes were 1800 miles apart. How fast was each plane flying?
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OpenStudy (anonymous):
2700 divided by 3 = 900 airplane two flew twice as fast, so it travelled 1800miles, airplane one travelled 900 miles, both in 3 hours. the velocity of airplane one is 900:3 = 300 miles an hour the velocity of airplane two is 1800:3 = 600 miles an hour (twice as fast)
OpenStudy (anonymous):
thank you
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